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Merge 10.2 into 10.3

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This commit is contained in:
Marko Mäkelä
2020-07-02 06:17:51 +03:00
parent 6d3747a294 dba7e1e8e1
commit 1df1a63924
210 changed files with 2371 additions and 698 deletions
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42
sql/sql_show.cc
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@ -1,5 +1,5 @@
/* Copyright (c) 2000, 2015, Oracle and/or its affiliates.
Copyright (c) 2009, 2019, MariaDB
Copyright (c) 2009, 2020, MariaDB
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
@ -5291,6 +5291,29 @@ bool store_schema_shemata(THD* thd, TABLE *table, LEX_CSTRING *db_name,
}
/*
Check if the specified database exists on disk.
@param dbname - the database name
@retval true - on error, the database directory does not exists
@retval false - on success, the database directory exists
*/
static bool verify_database_directory_exists(const LEX_CSTRING &dbname)
{
DBUG_ENTER("verify_database_directory_exists");
char path[FN_REFLEN + 16];
uint path_len;
MY_STAT stat_info;
if (!dbname.str[0])
DBUG_RETURN(true); // Empty database name: does not exist.
path_len= build_table_filename(path, sizeof(path) - 1, dbname.str, "", "", 0);
path[path_len - 1]= 0;
if (!mysql_file_stat(key_file_misc, path, &stat_info, MYF(0)))
DBUG_RETURN(true); // The database directory was not found: does not exist.
DBUG_RETURN(false); // The database directory was found.
}
int fill_schema_schemata(THD *thd, TABLE_LIST *tables, COND *cond)
{
/*
@ -5319,19 +5342,10 @@ int fill_schema_schemata(THD *thd, TABLE_LIST *tables, COND *cond)
If we have lookup db value we should check that the database exists
*/
if(lookup_field_vals.db_value.str && !lookup_field_vals.wild_db_value &&
db_names.at(0) != &INFORMATION_SCHEMA_NAME)
{
char path[FN_REFLEN+16];
uint path_len;
MY_STAT stat_info;
if (!lookup_field_vals.db_value.str[0])
DBUG_RETURN(0);
path_len= build_table_filename(path, sizeof(path) - 1,
lookup_field_vals.db_value.str, "", "", 0);
path[path_len-1]= 0;
if (!mysql_file_stat(key_file_misc, path, &stat_info, MYF(0)))
DBUG_RETURN(0);
}
(!db_names.elements() /* The database name was too long */||
(db_names.at(0) != &INFORMATION_SCHEMA_NAME &&
verify_database_directory_exists(lookup_field_vals.db_value))))
DBUG_RETURN(0);
for (size_t i=0; i < db_names.elements(); i++)
{