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eakmanrq merged 11 commits into from
Mar 17, 2026
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feat: add pyspark 4 support with 50+ new functions #616

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d1df666
feat: add pyspark 4 support with new functions
eakmanrq Mar 15, 2026
0d0d5eb
fix: handle missing _is_postgres attr on SparkSession and flexible da…
eakmanrq Mar 15, 2026
3251b58
fix: resolve PySpark 4 CI failures in integration tests
eakmanrq Mar 15, 2026
7f88324
refactor: address PR review comments on ignore_funcs and postgres checks
eakmanrq Mar 15, 2026
3b027df
test: add integration tests for all 39 new PySpark 4 functions
eakmanrq Mar 15, 2026
08258c4
style: apply ruff-format to integration test file
eakmanrq Mar 15, 2026
d3e14a9
docs: explain PySpark 4 StructField.__eq__ change in compare_schemas
eakmanrq Mar 15, 2026
ecce2b1
test: strengthen assertions in PySpark 4 integration tests
eakmanrq Mar 15, 2026
de89f92
fix: address PySpark 4 integration test failures
eakmanrq Mar 16, 2026
4ba3b9a
docs: add PySpark 4 functions to engine documentation
eakmanrq Mar 16, 2026
8f3856c
fix: address PR review comments on new PySpark 4 functions
eakmanrq Mar 16, 2026
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4 changes: 4 additions & 0 deletions docs/bigquery.md
View file
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Original file line number Diff line number Diff line change
Expand Up @@ -464,6 +464,7 @@ See something that you would like to see supported? [Open an issue](https://gith
* [next_day](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.next_day.html)
* [nth_value](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.nth_value.html)
* [ntile](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.ntile.html)
* [nullifzero](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.nullifzero.html)
* [octet_length](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.octet_length.html)
* [overlay](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.overlay.html)
* [percent_rank](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.percent_rank.html)
Expand Down Expand Up @@ -497,6 +498,7 @@ See something that you would like to see supported? [Open an issue](https://gith
* [sec](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.sec.html)
* [second](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.second.html)
* [sequence](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.sequence.html)
* [session_user](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.session_user.html)
* [sha](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.sha.html)
* [sha1](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.sha1.html)
* [shiftLeft](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.shiftLeft.html)
Expand Down Expand Up @@ -547,13 +549,15 @@ See something that you would like to see supported? [Open an issue](https://gith
* [unix_millis](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.unix_millis.html)
* [unix_seconds](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.unix_seconds.html)
* [unix_timestamp](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.unix_timestamp.html)
* [uuid](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.uuid.html)
* [upper](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.upper.html)
* [var_pop](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.var_pop.html)
* [var_samp](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.var_samp.html)
* [variance](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.variance.html)
* [weekofyear](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.weekofyear.html)
* [when](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.when.html)
* [year](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.year.html)
* [zeroifnull](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.zeroifnull.html)

### GroupedData Class

Expand Down
4 changes: 4 additions & 0 deletions docs/docs/bigquery.md
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Original file line number Diff line number Diff line change
Expand Up @@ -317,6 +317,7 @@ print(session.catalog.listColumns(table_path))
* [next_day](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.next_day.html)
* [nth_value](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.nth_value.html)
* [ntile](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.ntile.html)
* [nullifzero](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.nullifzero.html)
* [octet_length](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.octet_length.html)
* [overlay](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.overlay.html)
* [percent_rank](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.percent_rank.html)
Expand Down Expand Up @@ -344,6 +345,7 @@ print(session.catalog.listColumns(table_path))
* [sec](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.sec.html)
* [second](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.second.html)
* [sequence](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.sequence.html)
* [session_user](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.session_user.html)
* [sha1](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.sha1.html)
* [shiftLeft](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.shiftLeft.html)
* [shiftRight](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.shiftRight.html)
Expand Down Expand Up @@ -388,13 +390,15 @@ print(session.catalog.listColumns(table_path))
* [unhex](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.unhex.html)
* [unix_timestamp](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.unix_timestamp.html)
* [The format string should be in BigQuery syntax](https://cloud.google.com/bigquery/docs/reference/standard-sql/format-elements)
* [uuid](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.uuid.html)
* [upper](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.upper.html)
* [var_pop](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.var_pop.html)
* [var_samp](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.var_samp.html)
* [variance](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.variance.html)
* [weekofyear](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.weekofyear.html)
* [when](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.when.html)
* [year](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.year.html)
* [zeroifnull](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.zeroifnull.html)

### GroupedData Class

Expand Down
9 changes: 9 additions & 0 deletions docs/docs/duckdb.md
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Original file line number Diff line number Diff line change
Expand Up @@ -223,6 +223,7 @@ df_store = session.createDataFrame(
* [col](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.col.html)
* [collect_list](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.collect_list.html)
* [collect_set](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.collect_set.html)
* [collate](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.collate.html)
* [concat](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.concat.html)
* Only works on strings (does not work on arrays)
* [concat_ws](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.concat_ws.html)
Expand All @@ -237,6 +238,7 @@ df_store = session.createDataFrame(
* [create_map](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.create_map.html)
* [cume_dist](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.cume_dist.html)
* [current_date](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.current_date.html)
* [current_time](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.current_time.html)
* [current_timestamp](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.current_timestamp.html)
* [date_add](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.date_add.html)
* [date_diff](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.date_diff.html)
Expand All @@ -247,6 +249,7 @@ df_store = session.createDataFrame(
* [dayofmonth](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.dayofmonth.html)
* [dayofweek](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.dayofweek.html)
* [dayofyear](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.dayofyear.html)
* [dayname](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.dayname.html)
* [decode](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.decode.html)
* [degrees](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.degrees.html)
* [dense_rank](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.dense_rank.html)
Expand Down Expand Up @@ -308,11 +311,13 @@ df_store = session.createDataFrame(
* [minute](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.minute.html)
* [module](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.module.html)
* [month](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.month.html)
* [monthname](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.monthname.html)
* [months_between](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.months_between.html)
* Rounded whole number is returned
* [nanvl](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.nanvl.html)
* [nth_value](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.nth_value.html)
* [ntile](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.ntile.html)
* [nullifzero](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.nullifzero.html)
* [overlay](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.overlay.html)
* [percent_rank](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.percent_rank.html)
* [percentile](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.percentile.html)
Expand All @@ -334,6 +339,7 @@ df_store = session.createDataFrame(
* [rtrim](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.rtrim.html)
* [second](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.second.html)
* [sequence](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.sequence.html)
* [session_user](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.session_user.html)
* [shiftLeft](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.shiftLeft.html)
* [shiftRight](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.shiftRight.html)
* [shiftleft](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.shiftleft.html)
Expand All @@ -359,6 +365,7 @@ df_store = session.createDataFrame(
* [sum_distinct](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.sum_distinct.html)
* [sys](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.sys.html)
* [tan](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.tan.html)
* [timestamp_diff](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.timestamp_diff.html)
* [timestamp_seconds](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.timestamp_seconds.html)
* [toDegrees](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.toDegrees.html)
* [toRadians](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.toRadians.html)
Expand All @@ -374,13 +381,15 @@ df_store = session.createDataFrame(
* [unhex](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.unhex.html)
* [unix_timestamp](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.unix_timestamp.html)
* [The format string should be in DuckDB syntax](https://duckdb.org/docs/sql/functions/dateformat.html#format-specifiers)
* [uuid](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.uuid.html)
* [upper](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.upper.html)
* [var_pop](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.var_pop.html)
* [var_samp](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.var_samp.html)
* [variance](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.variance.html)
* [weekofyear](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.weekofyear.html)
* [when](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.when.html)
* [year](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.year.html)
* [zeroifnull](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.zeroifnull.html)

### GroupedData Class

Expand Down
7 changes: 6 additions & 1 deletion docs/docs/postgres.md
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Original file line number Diff line number Diff line change
Expand Up @@ -223,6 +223,7 @@ df_store = session.createDataFrame(
* [covar_samp](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.covar_samp.html)
* [cume_dist](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.cume_dist.html)
* [current_date](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.current_date.html)
* [current_time](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.current_time.html)
* [current_timestamp](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.current_timestamp.html)
* [date_add](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.date_add.html)
* [date_diff](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.date_diff.html)
Expand Down Expand Up @@ -287,6 +288,7 @@ df_store = session.createDataFrame(
* [nanvl](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.nanvl.html)
* [nth_value](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.nth_value.html)
* [ntile](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.ntile.html)
* [nullifzero](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.nullifzero.html)
* [octet_length](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.octet_length.html)
* [overlay](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.overlay.html)
* [percent_rank](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.percent_rank.html)
Expand All @@ -306,6 +308,7 @@ df_store = session.createDataFrame(
* [rpad](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.rpad.html)
* [rtrim](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.rtrim.html)
* [second](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.second.html)
* [session_user](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.session_user.html)
* [shiftLeft](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.shiftLeft.html)
* [shiftRight](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.shiftRight.html)
* [shiftleft](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.shiftleft.html)
Expand Down Expand Up @@ -339,13 +342,15 @@ df_store = session.createDataFrame(
* [trunc](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.trunc.html)
* [unbase64](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.unbase64.html)
* [unix_timestamp](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.unix_timestamp.html)
* [uuid](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.uuid.html)
* [upper](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.upper.html)
* [var_pop](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.var_pop.html)
* [var_samp](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.var_samp.html)
* [variance](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.variance.html)
* [weekofyear](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.weekofyear.html)
* [when](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.when.html)
* [year](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.year.html)*
* [year](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.year.html)*
* [zeroifnull](https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.zeroifnull.html)

### GroupedData Class

Expand Down
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