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16.4.3.3 Replication Rule Application »
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16.4.3.2. Evaluation of Table-Level Replication Options

The slave checks for and evaluates table options only if no matching database options were found (see Section 16.4.3.1, “Evaluation of Database-Level Replication and Binary Logging Options”).

First, as a preliminary condition, the slave checks whether statement-based replication is enabled. If so, and the statement occurs within a stored function, the slave executes the statement and exits. (If row-based replication is enabled, the slave does not know whether a statement occurred within a stored function on the master, so this condition does not apply.)

Note

Recall that for statement-based replication, replication events represent statements (all changes making up a given event are associated with a single SQL statement); for row-based replication, each event represents a change in a single table row (thus a single statement such as UPDATE mytable SET mycol = 1 may yield many row-based events). When viewed in terms of events, the process of checking table options is the same for both row-based and statement-based replication.

Having reached this point, if there are no table options, the slave simply executes all events. If there are any --replicate-do-table or --replicate-wild-do-table options, the event must match one these if it is to be executed; otherwise, it is ignored. If there are any --replicate-ignore-table or --replicate-wild-ignore-table options, all events are executed except those that match any of these options. This process is illustrated in the following diagram:

Evaluation of Table-Level Filtering Rules in Replication

The following steps describe this evaluation in more detail:

  1. Are there any table options?

    • Yes.  Continue to step 2.

    • No.  Execute the event and exit.

  2. Are there any --replicate-do-table options?

    • Yes.  Does the table match any of them?

      • Yes.  Execute the event and exit.

      • No.  Continue to step 3.

    • No.  Continue to step 3.

  3. Are there any --replicate-ignore-table options?

    • Yes.  Does the table match any of them?

      • Yes.  Ignore the event and exit.

      • No.  Continue to step 4.

    • No.  Continue to step 4.

  4. Are there any --replicate-wild-do-table options?

    • Yes.  Does the table match any of them?

      • Yes.  Execute the event and exit.

      • No.  Continue to step 5.

    • No.  Continue to step 5.

  5. Are there any --replicate-ignore-table options?

    • Yes.  Does the table match any of them?

      • Yes.  Ignore the event and exit.

      • No.  Continue to step 6.

    • No.  Continue to step 6.

  6. Are there any --replicate-do-table or --replicate-wild-do-table options?

    • Yes.  Ignore the event and exit.

    • No.  Execute the event and exit.