diff --git a/tests/snapshots/mapped_stream/aliased_stream.jsonl b/tests/snapshots/mapped_stream/aliased_stream.jsonl
index 8df28ddf45..eef22485b2 100644
--- a/tests/snapshots/mapped_stream/aliased_stream.jsonl
+++ b/tests/snapshots/mapped_stream/aliased_stream.jsonl
@@ -1,6 +1,6 @@
 {"type": "STATE", "value": {}}
 {"type": "SCHEMA", "stream": "aliased_stream", "schema": {"properties": {"email": {"type": ["string", "null"]}, "count": {"type": ["integer", "null"]}, "user": {"properties": {"id": {"type": ["integer", "null"]}, "sub": {"properties": {"num": {"type": ["integer", "null"]}}, "type": ["object", "null"]}, "some_numbers": {"items": {"type": ["number"]}, "type": ["array", "null"]}}, "type": ["object", "null"]}}, "type": "object"}, "key_properties": []}
-{"type": "RECORD", "stream": "aliased_stream", "record": {"email": "alice@example.com", "count": 21, "user": {"id": 1, "sub": {"num": 1}, "some_numbers": [3.14, 2.718]}}, "time_extracted": "2022-01-01T00:00:00+00:00"}
-{"type": "RECORD", "stream": "aliased_stream", "record": {"email": "bob@example.com", "count": 13, "user": {"id": 2, "sub": {"num": 2}, "some_numbers": [10.32, 1.618]}}, "time_extracted": "2022-01-01T00:00:00+00:00"}
-{"type": "RECORD", "stream": "aliased_stream", "record": {"email": "charlie@example.com", "count": 19, "user": {"id": 3, "sub": {"num": 3}, "some_numbers": [1.414, 1.732]}}, "time_extracted": "2022-01-01T00:00:00+00:00"}
+{"type": "RECORD", "stream": "aliased_stream", "record": {"email": "alice@example.com", "count": 21, "user": {"id": 1, "sub": {"num": 1}, "some_numbers": [3.14, 2.718]}}, "time_extracted": "2022-01-01 00:00:00+00:00"}
+{"type": "RECORD", "stream": "aliased_stream", "record": {"email": "bob@example.com", "count": 13, "user": {"id": 2, "sub": {"num": 2}, "some_numbers": [10.32, 1.618]}}, "time_extracted": "2022-01-01 00:00:00+00:00"}
+{"type": "RECORD", "stream": "aliased_stream", "record": {"email": "charlie@example.com", "count": 19, "user": {"id": 3, "sub": {"num": 3}, "some_numbers": [1.414, 1.732]}}, "time_extracted": "2022-01-01 00:00:00+00:00"}
 {"type": "STATE", "value": {"bookmarks": {"mystream": {}}}}
diff --git a/tests/snapshots/mapped_stream/changed_key_properties.jsonl b/tests/snapshots/mapped_stream/changed_key_properties.jsonl
index c5168a45be..892b1d2abb 100644
--- a/tests/snapshots/mapped_stream/changed_key_properties.jsonl
+++ b/tests/snapshots/mapped_stream/changed_key_properties.jsonl
@@ -1,6 +1,6 @@
 {"type": "STATE", "value": {}}
 {"type": "SCHEMA", "stream": "mystream", "schema": {"type": "object", "properties": {"email_hash": {"type": ["string", "null"]}}}, "key_properties": ["email_hash"]}
-{"type": "RECORD", "stream": "mystream", "record": {"email_hash": "c160f8cc69a4f0bf2b0362752353d060"}, "time_extracted": "2022-01-01T00:00:00+00:00"}
-{"type": "RECORD", "stream": "mystream", "record": {"email_hash": "4b9bb80620f03eb3719e0a061c14283d"}, "time_extracted": "2022-01-01T00:00:00+00:00"}
-{"type": "RECORD", "stream": "mystream", "record": {"email_hash": "426b189df1e2f359efe6ee90f2d2030f"}, "time_extracted": "2022-01-01T00:00:00+00:00"}
+{"type": "RECORD", "stream": "mystream", "record": {"email_hash": "c160f8cc69a4f0bf2b0362752353d060"}, "time_extracted": "2022-01-01 00:00:00+00:00"}
+{"type": "RECORD", "stream": "mystream", "record": {"email_hash": "4b9bb80620f03eb3719e0a061c14283d"}, "time_extracted": "2022-01-01 00:00:00+00:00"}
+{"type": "RECORD", "stream": "mystream", "record": {"email_hash": "426b189df1e2f359efe6ee90f2d2030f"}, "time_extracted": "2022-01-01 00:00:00+00:00"}
 {"type": "STATE", "value": {"bookmarks": {"mystream": {}}}}
diff --git a/tests/snapshots/mapped_stream/drop_property.jsonl b/tests/snapshots/mapped_stream/drop_property.jsonl
index aece20a309..565009550f 100644
--- a/tests/snapshots/mapped_stream/drop_property.jsonl
+++ b/tests/snapshots/mapped_stream/drop_property.jsonl
@@ -1,6 +1,6 @@
 {"type": "STATE", "value": {}}
 {"type": "SCHEMA", "stream": "mystream", "schema": {"properties": {"count": {"type": ["integer", "null"]}, "user": {"properties": {"id": {"type": ["integer", "null"]}, "sub": {"properties": {"num": {"type": ["integer", "null"]}}, "type": ["object", "null"]}, "some_numbers": {"items": {"type": ["number"]}, "type": ["array", "null"]}}, "type": ["object", "null"]}}, "type": "object"}, "key_properties": []}
-{"type": "RECORD", "stream": "mystream", "record": {"count": 21, "user": {"id": 1, "sub": {"num": 1}, "some_numbers": [3.14, 2.718]}}, "time_extracted": "2022-01-01T00:00:00+00:00"}
-{"type": "RECORD", "stream": "mystream", "record": {"count": 13, "user": {"id": 2, "sub": {"num": 2}, "some_numbers": [10.32, 1.618]}}, "time_extracted": "2022-01-01T00:00:00+00:00"}
-{"type": "RECORD", "stream": "mystream", "record": {"count": 19, "user": {"id": 3, "sub": {"num": 3}, "some_numbers": [1.414, 1.732]}}, "time_extracted": "2022-01-01T00:00:00+00:00"}
+{"type": "RECORD", "stream": "mystream", "record": {"count": 21, "user": {"id": 1, "sub": {"num": 1}, "some_numbers": [3.14, 2.718]}}, "time_extracted": "2022-01-01 00:00:00+00:00"}
+{"type": "RECORD", "stream": "mystream", "record": {"count": 13, "user": {"id": 2, "sub": {"num": 2}, "some_numbers": [10.32, 1.618]}}, "time_extracted": "2022-01-01 00:00:00+00:00"}
+{"type": "RECORD", "stream": "mystream", "record": {"count": 19, "user": {"id": 3, "sub": {"num": 3}, "some_numbers": [1.414, 1.732]}}, "time_extracted": "2022-01-01 00:00:00+00:00"}
 {"type": "STATE", "value": {"bookmarks": {"mystream": {}}}}
diff --git a/tests/snapshots/mapped_stream/drop_property_null_string.jsonl b/tests/snapshots/mapped_stream/drop_property_null_string.jsonl
index aece20a309..565009550f 100644
--- a/tests/snapshots/mapped_stream/drop_property_null_string.jsonl
+++ b/tests/snapshots/mapped_stream/drop_property_null_string.jsonl
@@ -1,6 +1,6 @@
 {"type": "STATE", "value": {}}
 {"type": "SCHEMA", "stream": "mystream", "schema": {"properties": {"count": {"type": ["integer", "null"]}, "user": {"properties": {"id": {"type": ["integer", "null"]}, "sub": {"properties": {"num": {"type": ["integer", "null"]}}, "type": ["object", "null"]}, "some_numbers": {"items": {"type": ["number"]}, "type": ["array", "null"]}}, "type": ["object", "null"]}}, "type": "object"}, "key_properties": []}
-{"type": "RECORD", "stream": "mystream", "record": {"count": 21, "user": {"id": 1, "sub": {"num": 1}, "some_numbers": [3.14, 2.718]}}, "time_extracted": "2022-01-01T00:00:00+00:00"}
-{"type": "RECORD", "stream": "mystream", "record": {"count": 13, "user": {"id": 2, "sub": {"num": 2}, "some_numbers": [10.32, 1.618]}}, "time_extracted": "2022-01-01T00:00:00+00:00"}
-{"type": "RECORD", "stream": "mystream", "record": {"count": 19, "user": {"id": 3, "sub": {"num": 3}, "some_numbers": [1.414, 1.732]}}, "time_extracted": "2022-01-01T00:00:00+00:00"}
+{"type": "RECORD", "stream": "mystream", "record": {"count": 21, "user": {"id": 1, "sub": {"num": 1}, "some_numbers": [3.14, 2.718]}}, "time_extracted": "2022-01-01 00:00:00+00:00"}
+{"type": "RECORD", "stream": "mystream", "record": {"count": 13, "user": {"id": 2, "sub": {"num": 2}, "some_numbers": [10.32, 1.618]}}, "time_extracted": "2022-01-01 00:00:00+00:00"}
+{"type": "RECORD", "stream": "mystream", "record": {"count": 19, "user": {"id": 3, "sub": {"num": 3}, "some_numbers": [1.414, 1.732]}}, "time_extracted": "2022-01-01 00:00:00+00:00"}
 {"type": "STATE", "value": {"bookmarks": {"mystream": {}}}}
diff --git a/tests/snapshots/mapped_stream/flatten_all.jsonl b/tests/snapshots/mapped_stream/flatten_all.jsonl
index e588c9dc15..dd1e74ba0a 100644
--- a/tests/snapshots/mapped_stream/flatten_all.jsonl
+++ b/tests/snapshots/mapped_stream/flatten_all.jsonl
@@ -1,6 +1,6 @@
 {"type": "STATE", "value": {}}
 {"type": "SCHEMA", "stream": "mystream", "schema": {"properties": {"email": {"type": ["string", "null"]}, "count": {"type": ["integer", "null"]}, "user__id": {"type": ["integer", "null"]}, "user__sub__num": {"type": ["integer", "null"]}, "user__some_numbers": {"type": ["string", "null"]}}, "type": "object"}, "key_properties": []}
-{"type": "RECORD", "stream": "mystream", "record": {"email": "alice@example.com", "count": 21, "user__id": 1, "user__sub__num": 1, "user__some_numbers": "[3.14, 2.718]"}, "time_extracted": "2022-01-01T00:00:00+00:00"}
-{"type": "RECORD", "stream": "mystream", "record": {"email": "bob@example.com", "count": 13, "user__id": 2, "user__sub__num": 2, "user__some_numbers": "[10.32, 1.618]"}, "time_extracted": "2022-01-01T00:00:00+00:00"}
-{"type": "RECORD", "stream": "mystream", "record": {"email": "charlie@example.com", "count": 19, "user__id": 3, "user__sub__num": 3, "user__some_numbers": "[1.414, 1.732]"}, "time_extracted": "2022-01-01T00:00:00+00:00"}
+{"type": "RECORD", "stream": "mystream", "record": {"email": "alice@example.com", "count": 21, "user__id": 1, "user__sub__num": 1, "user__some_numbers": "[3.14, 2.718]"}, "time_extracted": "2022-01-01 00:00:00+00:00"}
+{"type": "RECORD", "stream": "mystream", "record": {"email": "bob@example.com", "count": 13, "user__id": 2, "user__sub__num": 2, "user__some_numbers": "[10.32, 1.618]"}, "time_extracted": "2022-01-01 00:00:00+00:00"}
+{"type": "RECORD", "stream": "mystream", "record": {"email": "charlie@example.com", "count": 19, "user__id": 3, "user__sub__num": 3, "user__some_numbers": "[1.414, 1.732]"}, "time_extracted": "2022-01-01 00:00:00+00:00"}
 {"type": "STATE", "value": {"bookmarks": {"mystream": {}}}}
diff --git a/tests/snapshots/mapped_stream/flatten_depth_0.jsonl b/tests/snapshots/mapped_stream/flatten_depth_0.jsonl
index 7a8b54581b..d299db7973 100644
--- a/tests/snapshots/mapped_stream/flatten_depth_0.jsonl
+++ b/tests/snapshots/mapped_stream/flatten_depth_0.jsonl
@@ -1,6 +1,6 @@
 {"type": "STATE", "value": {}}
 {"type": "SCHEMA", "stream": "mystream", "schema": {"properties": {"email": {"type": ["string", "null"]}, "count": {"type": ["integer", "null"]}, "user": {"properties": {"id": {"type": ["integer", "null"]}, "sub": {"properties": {"num": {"type": ["integer", "null"]}}, "type": ["object", "null"]}, "some_numbers": {"items": {"type": ["number"]}, "type": ["array", "null"]}}, "type": ["object", "null"]}}, "type": "object"}, "key_properties": []}
-{"type": "RECORD", "stream": "mystream", "record": {"email": "alice@example.com", "count": 21, "user": {"id": 1, "sub": {"num": 1}, "some_numbers": [3.14, 2.718]}}, "time_extracted": "2022-01-01T00:00:00+00:00"}
-{"type": "RECORD", "stream": "mystream", "record": {"email": "bob@example.com", "count": 13, "user": {"id": 2, "sub": {"num": 2}, "some_numbers": [10.32, 1.618]}}, "time_extracted": "2022-01-01T00:00:00+00:00"}
-{"type": "RECORD", "stream": "mystream", "record": {"email": "charlie@example.com", "count": 19, "user": {"id": 3, "sub": {"num": 3}, "some_numbers": [1.414, 1.732]}}, "time_extracted": "2022-01-01T00:00:00+00:00"}
+{"type": "RECORD", "stream": "mystream", "record": {"email": "alice@example.com", "count": 21, "user": {"id": 1, "sub": {"num": 1}, "some_numbers": [3.14, 2.718]}}, "time_extracted": "2022-01-01 00:00:00+00:00"}
+{"type": "RECORD", "stream": "mystream", "record": {"email": "bob@example.com", "count": 13, "user": {"id": 2, "sub": {"num": 2}, "some_numbers": [10.32, 1.618]}}, "time_extracted": "2022-01-01 00:00:00+00:00"}
+{"type": "RECORD", "stream": "mystream", "record": {"email": "charlie@example.com", "count": 19, "user": {"id": 3, "sub": {"num": 3}, "some_numbers": [1.414, 1.732]}}, "time_extracted": "2022-01-01 00:00:00+00:00"}
 {"type": "STATE", "value": {"bookmarks": {"mystream": {}}}}
diff --git a/tests/snapshots/mapped_stream/flatten_depth_1.jsonl b/tests/snapshots/mapped_stream/flatten_depth_1.jsonl
index e3f6cd05f6..bdf9bab1a9 100644
--- a/tests/snapshots/mapped_stream/flatten_depth_1.jsonl
+++ b/tests/snapshots/mapped_stream/flatten_depth_1.jsonl
@@ -1,6 +1,6 @@
 {"type": "STATE", "value": {}}
 {"type": "SCHEMA", "stream": "mystream", "schema": {"properties": {"email": {"type": ["string", "null"]}, "count": {"type": ["integer", "null"]}, "user__id": {"type": ["integer", "null"]}, "user__sub": {"type": ["string", "null"]}, "user__some_numbers": {"type": ["string", "null"]}}, "type": "object"}, "key_properties": []}
-{"type": "RECORD", "stream": "mystream", "record": {"email": "alice@example.com", "count": 21, "user__id": 1, "user__sub": "{\"num\": 1}", "user__some_numbers": "[3.14, 2.718]"}, "time_extracted": "2022-01-01T00:00:00+00:00"}
-{"type": "RECORD", "stream": "mystream", "record": {"email": "bob@example.com", "count": 13, "user__id": 2, "user__sub": "{\"num\": 2}", "user__some_numbers": "[10.32, 1.618]"}, "time_extracted": "2022-01-01T00:00:00+00:00"}
-{"type": "RECORD", "stream": "mystream", "record": {"email": "charlie@example.com", "count": 19, "user__id": 3, "user__sub": "{\"num\": 3}", "user__some_numbers": "[1.414, 1.732]"}, "time_extracted": "2022-01-01T00:00:00+00:00"}
+{"type": "RECORD", "stream": "mystream", "record": {"email": "alice@example.com", "count": 21, "user__id": 1, "user__sub": "{\"num\": 1}", "user__some_numbers": "[3.14, 2.718]"}, "time_extracted": "2022-01-01 00:00:00+00:00"}
+{"type": "RECORD", "stream": "mystream", "record": {"email": "bob@example.com", "count": 13, "user__id": 2, "user__sub": "{\"num\": 2}", "user__some_numbers": "[10.32, 1.618]"}, "time_extracted": "2022-01-01 00:00:00+00:00"}
+{"type": "RECORD", "stream": "mystream", "record": {"email": "charlie@example.com", "count": 19, "user__id": 3, "user__sub": "{\"num\": 3}", "user__some_numbers": "[1.414, 1.732]"}, "time_extracted": "2022-01-01 00:00:00+00:00"}
 {"type": "STATE", "value": {"bookmarks": {"mystream": {}}}}
diff --git a/tests/snapshots/mapped_stream/keep_all_fields.jsonl b/tests/snapshots/mapped_stream/keep_all_fields.jsonl
index da476f6a5b..a00d6ead04 100644
--- a/tests/snapshots/mapped_stream/keep_all_fields.jsonl
+++ b/tests/snapshots/mapped_stream/keep_all_fields.jsonl
@@ -1,6 +1,6 @@
 {"type": "STATE", "value": {}}
 {"type": "SCHEMA", "stream": "mystream", "schema": {"properties": {"email": {"type": ["string", "null"]}, "count": {"type": ["integer", "null"]}, "user": {"properties": {"id": {"type": ["integer", "null"]}, "sub": {"properties": {"num": {"type": ["integer", "null"]}}, "type": ["object", "null"]}, "some_numbers": {"items": {"type": ["number"]}, "type": ["array", "null"]}}, "type": ["object", "null"]}, "email_hash": {"type": ["string", "null"]}}, "type": "object"}, "key_properties": []}
-{"type": "RECORD", "stream": "mystream", "record": {"email": "alice@example.com", "count": 21, "user": {"id": 1, "sub": {"num": 1}, "some_numbers": [3.14, 2.718]}, "email_hash": "c160f8cc69a4f0bf2b0362752353d060"}, "time_extracted": "2022-01-01T00:00:00+00:00"}
-{"type": "RECORD", "stream": "mystream", "record": {"email": "bob@example.com", "count": 13, "user": {"id": 2, "sub": {"num": 2}, "some_numbers": [10.32, 1.618]}, "email_hash": "4b9bb80620f03eb3719e0a061c14283d"}, "time_extracted": "2022-01-01T00:00:00+00:00"}
-{"type": "RECORD", "stream": "mystream", "record": {"email": "charlie@example.com", "count": 19, "user": {"id": 3, "sub": {"num": 3}, "some_numbers": [1.414, 1.732]}, "email_hash": "426b189df1e2f359efe6ee90f2d2030f"}, "time_extracted": "2022-01-01T00:00:00+00:00"}
+{"type": "RECORD", "stream": "mystream", "record": {"email": "alice@example.com", "count": 21, "user": {"id": 1, "sub": {"num": 1}, "some_numbers": [3.14, 2.718]}, "email_hash": "c160f8cc69a4f0bf2b0362752353d060"}, "time_extracted": "2022-01-01 00:00:00+00:00"}
+{"type": "RECORD", "stream": "mystream", "record": {"email": "bob@example.com", "count": 13, "user": {"id": 2, "sub": {"num": 2}, "some_numbers": [10.32, 1.618]}, "email_hash": "4b9bb80620f03eb3719e0a061c14283d"}, "time_extracted": "2022-01-01 00:00:00+00:00"}
+{"type": "RECORD", "stream": "mystream", "record": {"email": "charlie@example.com", "count": 19, "user": {"id": 3, "sub": {"num": 3}, "some_numbers": [1.414, 1.732]}, "email_hash": "426b189df1e2f359efe6ee90f2d2030f"}, "time_extracted": "2022-01-01 00:00:00+00:00"}
 {"type": "STATE", "value": {"bookmarks": {"mystream": {}}}}
diff --git a/tests/snapshots/mapped_stream/map_and_flatten.jsonl b/tests/snapshots/mapped_stream/map_and_flatten.jsonl
index 921094d05f..6f29221f49 100644
--- a/tests/snapshots/mapped_stream/map_and_flatten.jsonl
+++ b/tests/snapshots/mapped_stream/map_and_flatten.jsonl
@@ -1,6 +1,6 @@
 {"type": "STATE", "value": {}}
 {"type": "SCHEMA", "stream": "mystream", "schema": {"properties": {"email": {"type": ["string", "null"]}, "count": {"type": ["integer", "null"]}, "user__id": {"type": ["integer", "null"]}, "user__sub__num": {"type": ["integer", "null"]}, "user__some_numbers": {"type": ["string", "null"]}, "email_hash": {"type": ["string", "null"]}}, "type": "object"}, "key_properties": ["email_hash"]}
-{"type": "RECORD", "stream": "mystream", "record": {"email": "alice@example.com", "count": 21, "user__id": 1, "user__sub__num": 1, "user__some_numbers": "[3.14, 2.718]", "email_hash": "c160f8cc69a4f0bf2b0362752353d060"}, "time_extracted": "2022-01-01T00:00:00+00:00"}
-{"type": "RECORD", "stream": "mystream", "record": {"email": "bob@example.com", "count": 13, "user__id": 2, "user__sub__num": 2, "user__some_numbers": "[10.32, 1.618]", "email_hash": "4b9bb80620f03eb3719e0a061c14283d"}, "time_extracted": "2022-01-01T00:00:00+00:00"}
-{"type": "RECORD", "stream": "mystream", "record": {"email": "charlie@example.com", "count": 19, "user__id": 3, "user__sub__num": 3, "user__some_numbers": "[1.414, 1.732]", "email_hash": "426b189df1e2f359efe6ee90f2d2030f"}, "time_extracted": "2022-01-01T00:00:00+00:00"}
+{"type": "RECORD", "stream": "mystream", "record": {"email": "alice@example.com", "count": 21, "user__id": 1, "user__sub__num": 1, "user__some_numbers": "[3.14, 2.718]", "email_hash": "c160f8cc69a4f0bf2b0362752353d060"}, "time_extracted": "2022-01-01 00:00:00+00:00"}
+{"type": "RECORD", "stream": "mystream", "record": {"email": "bob@example.com", "count": 13, "user__id": 2, "user__sub__num": 2, "user__some_numbers": "[10.32, 1.618]", "email_hash": "4b9bb80620f03eb3719e0a061c14283d"}, "time_extracted": "2022-01-01 00:00:00+00:00"}
+{"type": "RECORD", "stream": "mystream", "record": {"email": "charlie@example.com", "count": 19, "user__id": 3, "user__sub__num": 3, "user__some_numbers": "[1.414, 1.732]", "email_hash": "426b189df1e2f359efe6ee90f2d2030f"}, "time_extracted": "2022-01-01 00:00:00+00:00"}
 {"type": "STATE", "value": {"bookmarks": {"mystream": {}}}}
diff --git a/tests/snapshots/mapped_stream/no_map.jsonl b/tests/snapshots/mapped_stream/no_map.jsonl
index 7a8b54581b..d299db7973 100644
--- a/tests/snapshots/mapped_stream/no_map.jsonl
+++ b/tests/snapshots/mapped_stream/no_map.jsonl
@@ -1,6 +1,6 @@
 {"type": "STATE", "value": {}}
 {"type": "SCHEMA", "stream": "mystream", "schema": {"properties": {"email": {"type": ["string", "null"]}, "count": {"type": ["integer", "null"]}, "user": {"properties": {"id": {"type": ["integer", "null"]}, "sub": {"properties": {"num": {"type": ["integer", "null"]}}, "type": ["object", "null"]}, "some_numbers": {"items": {"type": ["number"]}, "type": ["array", "null"]}}, "type": ["object", "null"]}}, "type": "object"}, "key_properties": []}
-{"type": "RECORD", "stream": "mystream", "record": {"email": "alice@example.com", "count": 21, "user": {"id": 1, "sub": {"num": 1}, "some_numbers": [3.14, 2.718]}}, "time_extracted": "2022-01-01T00:00:00+00:00"}
-{"type": "RECORD", "stream": "mystream", "record": {"email": "bob@example.com", "count": 13, "user": {"id": 2, "sub": {"num": 2}, "some_numbers": [10.32, 1.618]}}, "time_extracted": "2022-01-01T00:00:00+00:00"}
-{"type": "RECORD", "stream": "mystream", "record": {"email": "charlie@example.com", "count": 19, "user": {"id": 3, "sub": {"num": 3}, "some_numbers": [1.414, 1.732]}}, "time_extracted": "2022-01-01T00:00:00+00:00"}
+{"type": "RECORD", "stream": "mystream", "record": {"email": "alice@example.com", "count": 21, "user": {"id": 1, "sub": {"num": 1}, "some_numbers": [3.14, 2.718]}}, "time_extracted": "2022-01-01 00:00:00+00:00"}
+{"type": "RECORD", "stream": "mystream", "record": {"email": "bob@example.com", "count": 13, "user": {"id": 2, "sub": {"num": 2}, "some_numbers": [10.32, 1.618]}}, "time_extracted": "2022-01-01 00:00:00+00:00"}
+{"type": "RECORD", "stream": "mystream", "record": {"email": "charlie@example.com", "count": 19, "user": {"id": 3, "sub": {"num": 3}, "some_numbers": [1.414, 1.732]}}, "time_extracted": "2022-01-01 00:00:00+00:00"}
 {"type": "STATE", "value": {"bookmarks": {"mystream": {}}}}
diff --git a/tests/snapshots/mapped_stream/non_pk_passthrough.jsonl b/tests/snapshots/mapped_stream/non_pk_passthrough.jsonl
index 0cbbf451a9..0850be0027 100644
--- a/tests/snapshots/mapped_stream/non_pk_passthrough.jsonl
+++ b/tests/snapshots/mapped_stream/non_pk_passthrough.jsonl
@@ -1,6 +1,6 @@
 {"type": "STATE", "value": {}}
 {"type": "SCHEMA", "stream": "mystream", "schema": {"type": "object", "properties": {"count": {"type": ["integer", "null"]}}}, "key_properties": []}
-{"type": "RECORD", "stream": "mystream", "record": {"count": 21}, "time_extracted": "2022-01-01T00:00:00+00:00"}
-{"type": "RECORD", "stream": "mystream", "record": {"count": 13}, "time_extracted": "2022-01-01T00:00:00+00:00"}
-{"type": "RECORD", "stream": "mystream", "record": {"count": 19}, "time_extracted": "2022-01-01T00:00:00+00:00"}
+{"type": "RECORD", "stream": "mystream", "record": {"count": 21}, "time_extracted": "2022-01-01 00:00:00+00:00"}
+{"type": "RECORD", "stream": "mystream", "record": {"count": 13}, "time_extracted": "2022-01-01 00:00:00+00:00"}
+{"type": "RECORD", "stream": "mystream", "record": {"count": 19}, "time_extracted": "2022-01-01 00:00:00+00:00"}
 {"type": "STATE", "value": {"bookmarks": {"mystream": {}}}}
diff --git a/tests/snapshots/mapped_stream/only_mapped_fields.jsonl b/tests/snapshots/mapped_stream/only_mapped_fields.jsonl
index e53042958f..fb69da3626 100644
--- a/tests/snapshots/mapped_stream/only_mapped_fields.jsonl
+++ b/tests/snapshots/mapped_stream/only_mapped_fields.jsonl
@@ -1,6 +1,6 @@
 {"type": "STATE", "value": {}}
 {"type": "SCHEMA", "stream": "mystream", "schema": {"type": "object", "properties": {"email_hash": {"type": ["string", "null"]}, "fixed_count": {"type": ["integer", "null"]}}}, "key_properties": []}
-{"type": "RECORD", "stream": "mystream", "record": {"email_hash": "c160f8cc69a4f0bf2b0362752353d060", "fixed_count": 20}, "time_extracted": "2022-01-01T00:00:00+00:00"}
-{"type": "RECORD", "stream": "mystream", "record": {"email_hash": "4b9bb80620f03eb3719e0a061c14283d", "fixed_count": 12}, "time_extracted": "2022-01-01T00:00:00+00:00"}
-{"type": "RECORD", "stream": "mystream", "record": {"email_hash": "426b189df1e2f359efe6ee90f2d2030f", "fixed_count": 18}, "time_extracted": "2022-01-01T00:00:00+00:00"}
+{"type": "RECORD", "stream": "mystream", "record": {"email_hash": "c160f8cc69a4f0bf2b0362752353d060", "fixed_count": 20}, "time_extracted": "2022-01-01 00:00:00+00:00"}
+{"type": "RECORD", "stream": "mystream", "record": {"email_hash": "4b9bb80620f03eb3719e0a061c14283d", "fixed_count": 12}, "time_extracted": "2022-01-01 00:00:00+00:00"}
+{"type": "RECORD", "stream": "mystream", "record": {"email_hash": "426b189df1e2f359efe6ee90f2d2030f", "fixed_count": 18}, "time_extracted": "2022-01-01 00:00:00+00:00"}
 {"type": "STATE", "value": {"bookmarks": {"mystream": {}}}}
diff --git a/tests/snapshots/mapped_stream/only_mapped_fields_null_string.jsonl b/tests/snapshots/mapped_stream/only_mapped_fields_null_string.jsonl
index e53042958f..fb69da3626 100644
--- a/tests/snapshots/mapped_stream/only_mapped_fields_null_string.jsonl
+++ b/tests/snapshots/mapped_stream/only_mapped_fields_null_string.jsonl
@@ -1,6 +1,6 @@
 {"type": "STATE", "value": {}}
 {"type": "SCHEMA", "stream": "mystream", "schema": {"type": "object", "properties": {"email_hash": {"type": ["string", "null"]}, "fixed_count": {"type": ["integer", "null"]}}}, "key_properties": []}
-{"type": "RECORD", "stream": "mystream", "record": {"email_hash": "c160f8cc69a4f0bf2b0362752353d060", "fixed_count": 20}, "time_extracted": "2022-01-01T00:00:00+00:00"}
-{"type": "RECORD", "stream": "mystream", "record": {"email_hash": "4b9bb80620f03eb3719e0a061c14283d", "fixed_count": 12}, "time_extracted": "2022-01-01T00:00:00+00:00"}
-{"type": "RECORD", "stream": "mystream", "record": {"email_hash": "426b189df1e2f359efe6ee90f2d2030f", "fixed_count": 18}, "time_extracted": "2022-01-01T00:00:00+00:00"}
+{"type": "RECORD", "stream": "mystream", "record": {"email_hash": "c160f8cc69a4f0bf2b0362752353d060", "fixed_count": 20}, "time_extracted": "2022-01-01 00:00:00+00:00"}
+{"type": "RECORD", "stream": "mystream", "record": {"email_hash": "4b9bb80620f03eb3719e0a061c14283d", "fixed_count": 12}, "time_extracted": "2022-01-01 00:00:00+00:00"}
+{"type": "RECORD", "stream": "mystream", "record": {"email_hash": "426b189df1e2f359efe6ee90f2d2030f", "fixed_count": 18}, "time_extracted": "2022-01-01 00:00:00+00:00"}
 {"type": "STATE", "value": {"bookmarks": {"mystream": {}}}}
diff --git a/tests/snapshots/mapped_stream/record_to_column.jsonl b/tests/snapshots/mapped_stream/record_to_column.jsonl
index 8fc3efb21b..5b7504becb 100644
--- a/tests/snapshots/mapped_stream/record_to_column.jsonl
+++ b/tests/snapshots/mapped_stream/record_to_column.jsonl
@@ -1,6 +1,6 @@
 {"type": "STATE", "value": {}}
 {"type": "SCHEMA", "stream": "mystream", "schema": {"type": "object", "properties": {"_data": {"properties": {"email": {"type": ["string", "null"]}, "count": {"type": ["integer", "null"]}, "user": {"properties": {"id": {"type": ["integer", "null"]}, "sub": {"properties": {"num": {"type": ["integer", "null"]}}, "type": ["object", "null"]}, "some_numbers": {"items": {"type": ["number"]}, "type": ["array", "null"]}}, "type": ["object", "null"]}}, "type": ["object", "null"]}}}, "key_properties": []}
-{"type": "RECORD", "stream": "mystream", "record": {"_data": {"email": "alice@example.com", "count": 21, "user": {"id": 1, "sub": {"num": 1}, "some_numbers": [3.14, 2.718]}}}, "time_extracted": "2022-01-01T00:00:00+00:00"}
-{"type": "RECORD", "stream": "mystream", "record": {"_data": {"email": "bob@example.com", "count": 13, "user": {"id": 2, "sub": {"num": 2}, "some_numbers": [10.32, 1.618]}}}, "time_extracted": "2022-01-01T00:00:00+00:00"}
-{"type": "RECORD", "stream": "mystream", "record": {"_data": {"email": "charlie@example.com", "count": 19, "user": {"id": 3, "sub": {"num": 3}, "some_numbers": [1.414, 1.732]}}}, "time_extracted": "2022-01-01T00:00:00+00:00"}
+{"type": "RECORD", "stream": "mystream", "record": {"_data": {"email": "alice@example.com", "count": 21, "user": {"id": 1, "sub": {"num": 1}, "some_numbers": [3.14, 2.718]}}}, "time_extracted": "2022-01-01 00:00:00+00:00"}
+{"type": "RECORD", "stream": "mystream", "record": {"_data": {"email": "bob@example.com", "count": 13, "user": {"id": 2, "sub": {"num": 2}, "some_numbers": [10.32, 1.618]}}}, "time_extracted": "2022-01-01 00:00:00+00:00"}
+{"type": "RECORD", "stream": "mystream", "record": {"_data": {"email": "charlie@example.com", "count": 19, "user": {"id": 3, "sub": {"num": 3}, "some_numbers": [1.414, 1.732]}}}, "time_extracted": "2022-01-01 00:00:00+00:00"}
 {"type": "STATE", "value": {"bookmarks": {"mystream": {}}}}
diff --git a/tests/snapshots/mapped_stream/sourced_stream_1.jsonl b/tests/snapshots/mapped_stream/sourced_stream_1.jsonl
index a68add19cd..d20653e1b2 100644
--- a/tests/snapshots/mapped_stream/sourced_stream_1.jsonl
+++ b/tests/snapshots/mapped_stream/sourced_stream_1.jsonl
@@ -1,6 +1,6 @@
 {"type": "STATE", "value": {}}
 {"type": "SCHEMA", "stream": "sourced_stream_1", "schema": {"properties": {"email": {"type": ["string", "null"]}, "count": {"type": ["integer", "null"]}, "user": {"properties": {"id": {"type": ["integer", "null"]}, "sub": {"properties": {"num": {"type": ["integer", "null"]}}, "type": ["object", "null"]}, "some_numbers": {"items": {"type": ["number"]}, "type": ["array", "null"]}}, "type": ["object", "null"]}}, "type": "object"}, "key_properties": []}
-{"type": "RECORD", "stream": "sourced_stream_1", "record": {"email": "alice@example.com", "count": 21, "user": {"id": 1, "sub": {"num": 1}, "some_numbers": [3.14, 2.718]}}, "time_extracted": "2022-01-01T00:00:00+00:00"}
-{"type": "RECORD", "stream": "sourced_stream_1", "record": {"email": "bob@example.com", "count": 13, "user": {"id": 2, "sub": {"num": 2}, "some_numbers": [10.32, 1.618]}}, "time_extracted": "2022-01-01T00:00:00+00:00"}
-{"type": "RECORD", "stream": "sourced_stream_1", "record": {"email": "charlie@example.com", "count": 19, "user": {"id": 3, "sub": {"num": 3}, "some_numbers": [1.414, 1.732]}}, "time_extracted": "2022-01-01T00:00:00+00:00"}
+{"type": "RECORD", "stream": "sourced_stream_1", "record": {"email": "alice@example.com", "count": 21, "user": {"id": 1, "sub": {"num": 1}, "some_numbers": [3.14, 2.718]}}, "time_extracted": "2022-01-01 00:00:00+00:00"}
+{"type": "RECORD", "stream": "sourced_stream_1", "record": {"email": "bob@example.com", "count": 13, "user": {"id": 2, "sub": {"num": 2}, "some_numbers": [10.32, 1.618]}}, "time_extracted": "2022-01-01 00:00:00+00:00"}
+{"type": "RECORD", "stream": "sourced_stream_1", "record": {"email": "charlie@example.com", "count": 19, "user": {"id": 3, "sub": {"num": 3}, "some_numbers": [1.414, 1.732]}}, "time_extracted": "2022-01-01 00:00:00+00:00"}
 {"type": "STATE", "value": {"bookmarks": {"mystream": {}}}}
diff --git a/tests/snapshots/mapped_stream/sourced_stream_1_null_string.jsonl b/tests/snapshots/mapped_stream/sourced_stream_1_null_string.jsonl
index a68add19cd..d20653e1b2 100644
--- a/tests/snapshots/mapped_stream/sourced_stream_1_null_string.jsonl
+++ b/tests/snapshots/mapped_stream/sourced_stream_1_null_string.jsonl
@@ -1,6 +1,6 @@
 {"type": "STATE", "value": {}}
 {"type": "SCHEMA", "stream": "sourced_stream_1", "schema": {"properties": {"email": {"type": ["string", "null"]}, "count": {"type": ["integer", "null"]}, "user": {"properties": {"id": {"type": ["integer", "null"]}, "sub": {"properties": {"num": {"type": ["integer", "null"]}}, "type": ["object", "null"]}, "some_numbers": {"items": {"type": ["number"]}, "type": ["array", "null"]}}, "type": ["object", "null"]}}, "type": "object"}, "key_properties": []}
-{"type": "RECORD", "stream": "sourced_stream_1", "record": {"email": "alice@example.com", "count": 21, "user": {"id": 1, "sub": {"num": 1}, "some_numbers": [3.14, 2.718]}}, "time_extracted": "2022-01-01T00:00:00+00:00"}
-{"type": "RECORD", "stream": "sourced_stream_1", "record": {"email": "bob@example.com", "count": 13, "user": {"id": 2, "sub": {"num": 2}, "some_numbers": [10.32, 1.618]}}, "time_extracted": "2022-01-01T00:00:00+00:00"}
-{"type": "RECORD", "stream": "sourced_stream_1", "record": {"email": "charlie@example.com", "count": 19, "user": {"id": 3, "sub": {"num": 3}, "some_numbers": [1.414, 1.732]}}, "time_extracted": "2022-01-01T00:00:00+00:00"}
+{"type": "RECORD", "stream": "sourced_stream_1", "record": {"email": "alice@example.com", "count": 21, "user": {"id": 1, "sub": {"num": 1}, "some_numbers": [3.14, 2.718]}}, "time_extracted": "2022-01-01 00:00:00+00:00"}
+{"type": "RECORD", "stream": "sourced_stream_1", "record": {"email": "bob@example.com", "count": 13, "user": {"id": 2, "sub": {"num": 2}, "some_numbers": [10.32, 1.618]}}, "time_extracted": "2022-01-01 00:00:00+00:00"}
+{"type": "RECORD", "stream": "sourced_stream_1", "record": {"email": "charlie@example.com", "count": 19, "user": {"id": 3, "sub": {"num": 3}, "some_numbers": [1.414, 1.732]}}, "time_extracted": "2022-01-01 00:00:00+00:00"}
 {"type": "STATE", "value": {"bookmarks": {"mystream": {}}}}
diff --git a/tests/snapshots/mapped_stream/sourced_stream_2.jsonl b/tests/snapshots/mapped_stream/sourced_stream_2.jsonl
index 2345510066..aed36d3cec 100644
--- a/tests/snapshots/mapped_stream/sourced_stream_2.jsonl
+++ b/tests/snapshots/mapped_stream/sourced_stream_2.jsonl
@@ -1,6 +1,6 @@
 {"type": "STATE", "value": {}}
 {"type": "SCHEMA", "stream": "sourced_stream_2", "schema": {"properties": {"email": {"type": ["string", "null"]}, "count": {"type": ["integer", "null"]}, "user": {"properties": {"id": {"type": ["integer", "null"]}, "sub": {"properties": {"num": {"type": ["integer", "null"]}}, "type": ["object", "null"]}, "some_numbers": {"items": {"type": ["number"]}, "type": ["array", "null"]}}, "type": ["object", "null"]}}, "type": "object"}, "key_properties": []}
-{"type": "RECORD", "stream": "sourced_stream_2", "record": {"email": "alice@example.com", "count": 21, "user": {"id": 1, "sub": {"num": 1}, "some_numbers": [3.14, 2.718]}}, "time_extracted": "2022-01-01T00:00:00+00:00"}
-{"type": "RECORD", "stream": "sourced_stream_2", "record": {"email": "bob@example.com", "count": 13, "user": {"id": 2, "sub": {"num": 2}, "some_numbers": [10.32, 1.618]}}, "time_extracted": "2022-01-01T00:00:00+00:00"}
-{"type": "RECORD", "stream": "sourced_stream_2", "record": {"email": "charlie@example.com", "count": 19, "user": {"id": 3, "sub": {"num": 3}, "some_numbers": [1.414, 1.732]}}, "time_extracted": "2022-01-01T00:00:00+00:00"}
+{"type": "RECORD", "stream": "sourced_stream_2", "record": {"email": "alice@example.com", "count": 21, "user": {"id": 1, "sub": {"num": 1}, "some_numbers": [3.14, 2.718]}}, "time_extracted": "2022-01-01 00:00:00+00:00"}
+{"type": "RECORD", "stream": "sourced_stream_2", "record": {"email": "bob@example.com", "count": 13, "user": {"id": 2, "sub": {"num": 2}, "some_numbers": [10.32, 1.618]}}, "time_extracted": "2022-01-01 00:00:00+00:00"}
+{"type": "RECORD", "stream": "sourced_stream_2", "record": {"email": "charlie@example.com", "count": 19, "user": {"id": 3, "sub": {"num": 3}, "some_numbers": [1.414, 1.732]}}, "time_extracted": "2022-01-01 00:00:00+00:00"}
 {"type": "STATE", "value": {"bookmarks": {"mystream": {}}}}