exposed-migration-jdbc/src/main/kotlin/org/jetbrains/exposed/v1/migration/jdbc/MigrationUtils.kt [241:257]:
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        val foreignKeyConstraints = currentDialectMetadata.columnConstraints(*tables)
        val existingIndices = currentDialectMetadata.existingIndices(*tables)

        @OptIn(InternalApi::class)
        val filteredIndices = existingIndices.filterAndLogMissingAndUnmappedIndices(
            foreignKeyConstraints.keys, withDropIndices = true, withLogs, tables = tables
        )
        val (createMissing, dropUnmapped) = filteredIndices

        @OptIn(InternalApi::class)
        return createMissing.flatMap { it.createStatement() } +
            dropUnmapped.flatMap { it.dropStatement() } +
            foreignKeyConstraints.filterAndLogExcessConstraints(withLogs).flatMap { it.dropStatement() } +
            existingIndices.filterAndLogExcessIndices(withLogs).flatMap { it.dropStatement() } +
            checkUnmappedSequences(tables = tables, withLogs).flatMap { it.dropStatement() } +
            checkMissingCheckConstraints(tables = tables, withLogs).flatMap { it.createStatement() } +
            checkUnmappedCheckConstraints(tables = tables, withLogs).flatMap { it.dropStatement() }
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exposed-migration-r2dbc/src/main/kotlin/org/jetbrains/exposed/v1/migration/r2dbc/MigrationUtils.kt [241:257]:
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        val foreignKeyConstraints = currentDialectMetadata.columnConstraints(*tables)
        val existingIndices = currentDialectMetadata.existingIndices(*tables)

        @OptIn(InternalApi::class)
        val filteredIndices = existingIndices.filterAndLogMissingAndUnmappedIndices(
            foreignKeyConstraints.keys, withDropIndices = true, withLogs, tables = tables
        )
        val (createMissing, dropUnmapped) = filteredIndices

        @OptIn(InternalApi::class)
        return createMissing.flatMap { it.createStatement() } +
            dropUnmapped.flatMap { it.dropStatement() } +
            foreignKeyConstraints.filterAndLogExcessConstraints(withLogs).flatMap { it.dropStatement() } +
            existingIndices.filterAndLogExcessIndices(withLogs).flatMap { it.dropStatement() } +
            checkUnmappedSequences(tables = tables, withLogs).flatMap { it.dropStatement() } +
            checkMissingCheckConstraints(tables = tables, withLogs).flatMap { it.createStatement() } +
            checkUnmappedCheckConstraints(tables = tables, withLogs).flatMap { it.dropStatement() }
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