branch-4.0: [fix](jdbc) Fix PG array null detection and SQL Server date format pushdown #60954#60972
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yiguolei merged 1 commit intobranch-4.0from Mar 3, 2026
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…shdown (#60954) ### What problem does this PR solve? Fix two issues in JDBC catalog: 1. PostgreSQL array type detection: When the first row of a PostgreSQL table has NULL in an array column, `array_ndims(col)` returns NULL, causing arrayDimensions to remain 0 and the column type to be mapped as UNSUPPORTED. Add `WHERE col IS NOT NULL` to the detection query so that it finds a non-NULL row to correctly determine array dimensions. 2. SQL Server date/datetime predicate pushdown: Date and datetime literals were pushed down to SQL Server as plain string literals. Depending on SQL Server's language setting, this can cause conversion errors. Use CONVERT(DATE, '...', 23) and CONVERT(DATETIME, '...', 121) for language-independent date format handling.
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yiguolei
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Mar 3, 2026
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Cherry-picked from #60954