guptanikhil007 commented on a change in pull request #2758:
URL: https://github.com/apache/hive/pull/2758#discussion_r739430648
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File path:
standalone-metastore/metastore-common/src/main/java/org/apache/hadoop/hive/metastore/conf/MetastoreConf.java
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@@ -680,6 +680,9 @@ public static ConfVars getMetaConf(String name) {
DIRECT_SQL_MAX_ELEMENTS_VALUES_CLAUSE("metastore.direct.sql.max.elements.values.clause",
"hive.direct.sql.max.elements.values.clause",
1000, "The maximum number of values in a VALUES clause for INSERT
statement."),
+ DIRECT_SQL_MAX_PARAMETERS("metastore.direct.sql.max.parameters",
+ "hive.direct.sql.max.parameters", 1000, "The maximum parameters the\n"
+
Review comment:
Oracle: 64,000. Source
MySQL: The MySQL has a limit of 65,535 parameters (because num_params has to
fit in two bytes).
PostgreSql: 34464 for a query and 100 for a function
SqlLite: 999 (SQLITE_MAX_VARIABLE_NUMBER, which defaults to 999, but can be
lowered at runtime) - And for functions default is 100 parameters. See section
9 Of Run-time limits documentation
Source:
[StackOverflow](https://stackoverflow.com/questions/6581573/what-are-the-max-number-of-allowable-parameters-per-database-provider-type/49379324#:~:text=Thus%20the%20PostgreSQL%20protocol%20doesn,of%20which%20has%2065535%20parameters.)
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