Assertion failed in sql_transaction_commit with pgsql driver

[Potapov Sergey]

Hi!

Next code from driver_pgsql_transaction_commit cause assertion failed in do_query function - i_assert(SQL_DB_IS_READY(&db->api))

} else {
/* multiple queries, use a transaction */
ctx->refcount++;
sql_query(_ctx->db, "BEGIN", transaction_begin_callback, ctx); <- first sql_query changes db state to SQL_DB_STATE_BUSY
while (_ctx->head != NULL) {
ctx->refcount++;
sql_query(_ctx->db, _ctx->head->query, <- second query cause assertion failed due to SQL_DB_IS_READY returns false
transaction_update_callback, _ctx->head);
_ctx->head = _ctx->head->next;
}
sql_query(_ctx->db, "COMMIT", transaction_commit_callback, ctx);
}

Next transaction query should be called after previous is finished and driver state changed to SQL_DB_STATE_IDLE