Nikolay Ivanitskiy created SPARK-36385:
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Summary: Add possibility for jdbc insert hints
Key: SPARK-36385
URL: https://issues.apache.org/jira/browse/SPARK-36385
Project: Spark
Issue Type: Improvement
Components: Spark Core
Affects Versions: 2.4.7
Reporter: Nikolay Ivanitskiy
Some SQL backends supports hints for SQL insert statement, such as
{code:java}
/*+ ignore_row_on_dupkey_index ( table(col1, col2, ...) ) */ {code}
for example.
{code:java}
insert /*+ ignore_row_on_dupkey_index ( table(col1, col2, ...) ) */ into
table(...{code}
But spark jdbc writer does not allow to add hints.
I suggest to add support for hints in
org.apache.spark.sql.execution.datasources.jdbc.JdbsUtils.getInsertStatement
and
org.apache.spark.sql.execution.datasources.jdbc.JdbsUtils.getInsertStatement.saveTable
Hints should be stored in options.
I already have version with hints support so if issue will be accepted I can
post the fix.
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