Remove the redundant function row_table_got_default_clust_index()

Use dict_index_is_auto_gen_clust() instead.

storage/innobase/handler/ha_innodb.cc

@@ -6689,11 +6689,8 @@ ha_innobase::open(const char* name, int, uint)
 	a row in our table. Note that MySQL may also compare two row
 	references for equality by doing a simple memcmp on the strings
 	of length ref_length! */
-
-	if (!row_table_got_default_clust_index(ib_table)) {
-
-		m_prebuilt->clust_index_was_generated = FALSE;
-
+	if (!(m_prebuilt->clust_index_was_generated
+	      = dict_index_is_auto_gen_clust(ib_table->indexes.start))) {
 		if (m_primary_key >= MAX_KEY) {
 			ib_table->dict_frm_mismatch = DICT_FRM_NO_PK;
 
@@ -6759,8 +6756,6 @@ ha_innobase::open(const char* name, int, uint)
 			ib_push_frm_error(thd, ib_table, table, 0, true);
 		}
 
-		m_prebuilt->clust_index_was_generated = TRUE;
-
 		ref_length = DATA_ROW_ID_LEN;
 
 		/* If we automatically created the clustered index, then
@@ -14462,7 +14457,8 @@ innobase_get_mysql_key_number_for_index(
 			i++;
 		}
 
-		if (row_table_got_default_clust_index(index->table)) {
+		if (dict_index_is_clust(index)
+		    && dict_index_is_auto_gen_clust(index)) {
 			ut_a(i > 0);
 			i--;
 		}

storage/innobase/handler/handler0alter.cc

@@ -689,7 +689,8 @@ ha_innobase::check_if_supported_inplace_alter(
 
 		/* See if MYSQL table has no pk but we do. */
 		if (UNIV_UNLIKELY(my_primary_key >= MAX_KEY)
-		    && !row_table_got_default_clust_index(m_prebuilt->table)) {
+		    && !dict_index_is_auto_gen_clust(
+			    dict_table_get_first_index(m_prebuilt->table))) {
 			ha_alter_info->unsupported_reason = innobase_get_err_msg(
 				ER_PRIMARY_CANT_HAVE_NULL);
 			DBUG_RETURN(HA_ALTER_INPLACE_NOT_SUPPORTED);
@@ -4448,7 +4449,8 @@ prepare_inplace_alter_table_dict(
 	index_defs = innobase_create_key_defs(
 		ctx->heap, ha_alter_info, altered_table, ctx->num_to_add_index,
 		num_fts_index,
-		row_table_got_default_clust_index(ctx->new_table),
+		dict_index_is_auto_gen_clust(dict_table_get_first_index(
+						     ctx->new_table)),
 		fts_doc_id_col, add_fts_doc_id, add_fts_doc_id_idx,
 		old_table);
 

storage/innobase/include/row0mysql.h

@@ -262,15 +262,6 @@ row_get_prebuilt_update_vector(
 /*===========================*/
 	row_prebuilt_t*	prebuilt);	/*!< in: prebuilt struct in MySQL
 					handle */
-/*********************************************************************//**
-Checks if a table is such that we automatically created a clustered
-index on it (on row id).
-@return TRUE if the clustered index was generated automatically */
-ibool
-row_table_got_default_clust_index(
-/*==============================*/
-	const dict_table_t*	table);	/*!< in: table */
-
 /** Does an update or delete of a row for MySQL.
 @param[in,out]	prebuilt	prebuilt struct in MySQL handle
 @return error code or DB_SUCCESS */

storage/innobase/row/row0mysql.cc

@@ -2283,22 +2283,6 @@ row_unlock_for_mysql(
 	trx->op_info = "";
 }
 
-/*********************************************************************//**
-Checks if a table is such that we automatically created a clustered
-index on it (on row id).
-@return TRUE if the clustered index was generated automatically */
-ibool
-row_table_got_default_clust_index(
-/*==============================*/
-	const dict_table_t*	table)	/*!< in: table */
-{
-	const dict_index_t*	clust_index;
-
-	clust_index = dict_table_get_first_index(table);
-
-	return(dict_index_get_nth_col(clust_index, 0)->mtype == DATA_SYS);
-}
-
 /*********************************************************************//**
 Locks the data dictionary in shared mode from modifications, for performing
 foreign key check, rollback, or other operation invisible to MySQL. */