diff options
| author | unknown <heikki@hundin.mysql.fi> | 2004-01-27 20:10:04 +0200 |
|---|---|---|
| committer | unknown <heikki@hundin.mysql.fi> | 2004-01-27 20:10:04 +0200 |
| commit | bd980424268b146dca070d5c3c250afc23ee0576 (patch) | |
| tree | 2591c5dd6372b050f3041662e6e6e8828a54b62a /innobase/include | |
| parent | 4db4ffef27624e58cc5c45cc8a165bfb9509fbfa (diff) | |
| download | mariadb-git-bd980424268b146dca070d5c3c250afc23ee0576.tar.gz | |
data0data.ic, data0data.h, row0sel.c:
Fix bug #2483 with InnoDB, UNIQUE secondary index, and NULL values in that unique index; with the IS NULL predicate, InnoDB returned only the first matching row, though there can be many
innobase/row/row0sel.c:
Fix bug #2483 with InnoDB, UNIQUE secondary index, and NULL values in that unique index; with the IS NULL predicate, InnoDB returned only the first matching row, though there can be many
innobase/include/data0data.h:
Fix bug #2483 with InnoDB, UNIQUE secondary index, and NULL values in that unique index; with the IS NULL predicate, InnoDB returned only the first matching row, though there can be many
innobase/include/data0data.ic:
Fix bug #2483 with InnoDB, UNIQUE secondary index, and NULL values in that unique index; with the IS NULL predicate, InnoDB returned only the first matching row, though there can be many
Diffstat (limited to 'innobase/include')
| -rw-r--r-- | innobase/include/data0data.h | 8 | ||||
| -rw-r--r-- | innobase/include/data0data.ic | 25 |
2 files changed, 33 insertions, 0 deletions
diff --git a/innobase/include/data0data.h b/innobase/include/data0data.h index 889d148d3fe..2ec94a9517a 100644 --- a/innobase/include/data0data.h +++ b/innobase/include/data0data.h @@ -262,6 +262,14 @@ dtuple_set_types_binary( /*====================*/ dtuple_t* tuple, /* in: data tuple */ ulint n); /* in: number of fields to set */ +/************************************************************************** +Checks if a dtuple contains an SQL null value. */ +UNIV_INLINE +ibool +dtuple_contains_null( +/*=================*/ + /* out: TRUE if some field is SQL null */ + dtuple_t* tuple); /* in: dtuple */ /************************************************************** Checks that a data field is typed. Asserts an error if not. */ diff --git a/innobase/include/data0data.ic b/innobase/include/data0data.ic index d356664df21..bc5a93cb2f8 100644 --- a/innobase/include/data0data.ic +++ b/innobase/include/data0data.ic @@ -406,3 +406,28 @@ data_write_sql_null( data[j] = '\0'; } } + +/************************************************************************** +Checks if a dtuple contains an SQL null value. */ +UNIV_INLINE +ibool +dtuple_contains_null( +/*=================*/ + /* out: TRUE if some field is SQL null */ + dtuple_t* tuple) /* in: dtuple */ +{ + ulint n; + ulint i; + + n = dtuple_get_n_fields(tuple); + + for (i = 0; i < n; i++) { + if (dfield_get_len(dtuple_get_nth_field(tuple, i)) + == UNIV_SQL_NULL) { + + return(TRUE); + } + } + + return(FALSE); +}
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