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do not include table name in MySQL indexes.

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This commit is contained in:
Cyber Emissary 2018-02-06 12:52:53 -05:00
parent fd230f68f2
commit dbc7e51e98
1 changed files with 47 additions and 13 deletions
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52
src/libmdb/backend.c
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@ -483,6 +483,48 @@ int mdb_set_default_backend(MdbHandle *mdb, const char *backend_name)
}
}
/**
* Generates index name based on backend.
*
* You should free() the returned value once you are done with it.
*
* @param backend backend we are generating indexes for
* @param table table being processed
* @param idx index being processed
* @return the index name
*/
static char *
mdb_get_index_name(int backend, MdbTableDef *table, MdbIndex *idx)
{
char *index_name;
switch(backend){
case MDB_BACKEND_MYSQL:
// appending table name to index often makes it too long for mysql
index_name = malloc(strlen(idx->name)+5+1);
if (idx->index_type==1)
// for mysql name of primary key is not used
strcpy(index_name, "_pkey");
else {
strcpy(index_name, idx->name);
}
break;
default:
index_name = malloc(strlen(table->name)+strlen(idx->name)+5+1);
strcpy(index_name, table->name);
if (idx->index_type==1)
strcat(index_name, "_pkey");
else {
strcat(index_name, "_");
strcat(index_name, idx->name);
strcat(index_name, "_idx");
}
}
return index_name;
}
/**
* mdb_print_indexes
* @output: Where to print the sql
@ -525,15 +567,7 @@ mdb_print_indexes(FILE* outfile, MdbTableDef *table, char *dbnamespace)
if (idx->index_type==2)
continue;
index_name = malloc(strlen(table->name)+strlen(idx->name)+5+1);
strcpy(index_name, table->name);
if (idx->index_type==1)
strcat(index_name, "_pkey");
else {
strcat(index_name, "_");
strcat(index_name, idx->name);
strcat(index_name, "_idx");
}
index_name = mdb_get_index_name(backend, table, idx);
quoted_name = mdb->default_backend->quote_schema_name(dbnamespace, index_name);
if (idx->index_type==1) {
switch (backend) {