Module lifecycle 

Database lifecycle: extension schema installation, migrations, and connection/schema validation.

Re-exports the schema installers, the MigrationService and its result and status types, and the standalone validation helpers (validate_database_connection, validate_write_pool_is_primary, validate_table_exists, validate_column_exists).

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Structs

AppliedMigration

A recorded migration.

BaselineStamp

One extension_migrations row recording a migration as applied without having executed it.

BootstrapLockGuard

Session-pinned advisory lock serialising concurrent bootstraps.

ChecksumDrift

DeferredForeignKey

ExpensiveStatement

One statement that rewrites or rescans a hot table. position is 1-based, matching how the runner numbers statements when one fails.

ExtensionMigrationStatus

ForeignKeyDrift

FreshnessCheck

MarkAppliedOutcome

MigrationConfig

MigrationCost

One migration’s expensive statements and what it declared about them. malformed is set when the body carries a @cost line that does not parse.

MigrationResult

MigrationService

MigrationStatus

OrphanMigrationLedger

OrphanedMigration

An applied migration whose slot the extension no longer declares at all.

PendingMigration

RepairResult

ReplicaStatus

SchemaInstallReport

What install_extension_schemas* applied and what it could not.

SchemaResidue

SlotCollision

An applied migration whose slot is now occupied by a differently-named file.

SplitCreateTable

TombstonedSlot

A slot declared spent by a .tombstone file.

UndeclaredTable

Enums

FkDeferralError

Constants

BOOTSTRAP_ADVISORY_LOCK_KEY

HOT_TABLES

Functions

audit_migration_cost

audit_one

audit_schema_residue

check_migration_references

install_extension_schemas

install_extension_schemas_full

install_extension_schemas_with_config

is_retirement

replica_status

split_create_table_foreign_keys

validate_column_exists

validate_database_connection

validate_table_exists

validate_write_pool_is_primary