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Diffstat (limited to 'docs/sql-programming-guide.md')
| -rw-r--r-- | docs/sql-programming-guide.md | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/docs/sql-programming-guide.md b/docs/sql-programming-guide.md index ba3e55fc06..656e7ecdab 100644 --- a/docs/sql-programming-guide.md +++ b/docs/sql-programming-guide.md @@ -1087,6 +1087,13 @@ the following case-sensitive options: </tr> <tr> + <td><code>maxConnections</code></td> + <td> + The maximum number of concurrent JDBC connections that can be used, if set. Only applies when writing. It works by limiting the operation's parallelism, which depends on the input's partition count. If its partition count exceeds this limit, the operation will coalesce the input to fewer partitions before writing. + </td> + </tr> + + <tr> <td><code>isolationLevel</code></td> <td> The transaction isolation level, which applies to current connection. It can be one of <code>NONE<code>, <code>READ_COMMITTED<code>, <code>READ_UNCOMMITTED<code>, <code>REPEATABLE_READ<code>, or <code>SERIALIZABLE<code>, corresponding to standard transaction isolation levels defined by JDBC's Connection object, with default of <code>READ_UNCOMMITTED<code>. This option applies only to writing. Please refer the documentation in <code>java.sql.Connection</code>. |