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MDEV-19634: Assertion `0' failed in row_sel_convert_mysql_key_to_innobase, [Warning] InnoDB: Using a partial-field key prefix in search

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For a key with keyparts (k1,k2,k3) , if we are building a range over the keyparts
we should make sure that if min_value/max_value for a keypart is not added to
key buffer then the keyparts following should also not be allowed.
This commit is contained in:
Varun
2019-06-14 12:16:17 +05:30
parent 1e3dc15d62
commit 772c5f3c78
3 changed files with 43 additions and 4 deletions
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10
sql/opt_range.h
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@ -459,8 +459,9 @@ public:
uint res= key_tree->store_min(key[key_tree->part].store_length,
range_key, *range_key_flag);
// add flags only if a key_part is written to the buffer
if (res)
*range_key_flag|= key_tree->min_flag;
if (!res)
return 0;
*range_key_flag|= key_tree->min_flag;
if (key_tree->next_key_part &&
key_tree->next_key_part->type == SEL_ARG::KEY_RANGE &&
key_tree->part != last_part &&
@ -482,8 +483,9 @@ public:
SEL_ARG *key_tree= last();
uint res=key_tree->store_max(key[key_tree->part].store_length,
range_key, *range_key_flag);
if (res)
(*range_key_flag)|= key_tree->max_flag;
if (!res)
return 0;
*range_key_flag|= key_tree->max_flag;
if (key_tree->next_key_part &&
key_tree->next_key_part->type == SEL_ARG::KEY_RANGE &&
key_tree->part != last_part &&