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cdc: add warn for event filter #19223

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Oct 31, 2024
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cdc: add warn for event filter #19223

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Add temp.md
qiancai Oct 28, 2024
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qiancai Oct 28, 2024
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Update ticdc-changefeed-config.md
qiancai Oct 28, 2024
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Update ticdc/ticdc-changefeed-config.md
qiancai Oct 28, 2024
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2 changes: 1 addition & 1 deletion ticdc/ticdc-changefeed-config.md
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Expand Up @@ -100,7 +100,7 @@ rules = ['*.*', '!test.*']

# The second event filter rule.
# matcher = ["test.fruit"] # matcher is an allow list, which means this rule only applies to the fruit table in the test database.
# ignore-event = ["drop table", "delete"] # Ignore the `drop table` DDL events and the `delete` DML events.
# ignore-event = ["drop table", "delete"] # Ignore the `drop table` DDL events and the `delete` DML events. Note that when a value in the clustered index column is updated in TiDB, TiCDC splits an `UPDATE` event into `DELETE` and `INSERT` events. TiCDC cannot identify such events as `UPDATE` events and thus cannot correctly filter out such events.
# ignore-sql = ["^drop table", "alter table"] # Ignore DDL statements that start with `drop table` or contain `alter table`.
# ignore-insert-value-expr = "price > 1000 and origin = 'no where'" # Ignore insert DMLs that contain the conditions "price > 1000" and "origin = 'no where'".

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