Categorygithub.com/pingcap/tidbpkgutilfilter
package
9.0.0-alpha+incompatible
Repository: https://github.com/pingcap/tidb.git
Documentation: pkg.go.dev
Versions
3
Dependencies
6
Dependents
56
Files
379 SLOC

# README

Filter

filter provides a library to filter replicate on schema/table by given rules

Rules

rules like replication rules in MySQL, ref document: hhttps://dev.mysql.com/doc/refman/8.0/en/replication-rules-db-options.html https://dev.mysql.com/doc/refman/8.0/en/replication-rules-table-options.html

Priority and Key Points

  • DoDBs > IgnoreDBs
    • which rules to use?
      • If there are some DoDB rules, only use DoDB Rules
      • Otherwise if there are some IgnoreDB rules, use IgnoreDB rules
      • tables that are not filtered out or there are empty DoDBs/IgnoreDBs rules would go to filter on DoTables/IgnoreTables rules
  • DoTables > IgnoreTables
    • if there are DoTable Rules, but no one is matched, we would ignore corresponding table

# Functions

IsSystemSchema checks whether schema is system schema or not.
New creates a filter use the rules.

# Constants

builtin actiontype variable.
builtin actiontype variable.

# Variables

DMHeartbeatSchema is the heartbeat schema name.
InformationSchemaName is the `INFORMATION_SCHEMA` database name.
InspectionSchemaName is the `INSPECTION_SCHEMA` database name.
MetricSchemaName is the `METRICS_SCHEMA` database name.
PerformanceSchemaName is the `PERFORMANCE_SCHEMA` database name.

# Structs

Filter implements table filter in the style of MySQL replication rules.

# Type aliases

ActionType is do or ignore something.
Rules contains Filter rules.
Table represents a table.