fts0sql.cc File Reference

#include "que0que.h"
#include "trx0roll.h"
#include "pars0pars.h"
#include "dict0dict.h"
#include "fts0types.h"
#include "fts0priv.h"
#include "fts0types.ic"
#include "fts0vlc.ic"

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Functions
UNIV_INTERN int	fts_get_table_id (const fts_table_t *fts_table, char *table_id)
UNIV_INTERN char *	fts_get_table_name_prefix (const fts_table_t *fts_table)
UNIV_INTERN char *	fts_get_table_name (const fts_table_t *fts_table)
UNIV_INTERN que_t *	fts_parse_sql (fts_table_t *fts_table, pars_info_t *info, const char *sql)
UNIV_INTERN que_t *	fts_parse_sql_no_dict_lock (fts_table_t *fts_table, pars_info_t *info, const char *sql)
UNIV_INTERN dberr_t	fts_eval_sql (trx_t *trx, que_t *graph)
UNIV_INTERN const char *	fts_get_select_columns_str (dict_index_t *index, pars_info_t *info, mem_heap_t *heap)
UNIV_INTERN dberr_t	fts_sql_commit (trx_t *trx)
UNIV_INTERN dberr_t	fts_sql_rollback (trx_t *trx)

Detailed Description

Full Text Search functionality.

Created 2007-03-27 Sunny Bains

Definition in file fts0sql.cc.

Function Documentation

UNIV_INTERN dberr_t fts_eval_sql	(	trx_t *	trx,
		que_t *	graph
	)

Evaluate an SQL query graph.

Returns

DB_SUCCESS or error code

Parameters

trx	in: transaction
graph	in: Query graph to evaluate

Definition at line 266 of file fts0sql.cc.

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UNIV_INTERN const char* fts_get_select_columns_str	(	dict_index_t *	index,
		pars_info_t *	info,
		mem_heap_t *	heap
	)

Construct the column specification part of the SQL string for selecting the indexed FTS columns for the given table. Adds the necessary bound ids to the given 'info' and returns the SQL string. Examples:

One indexed column named "text":

"$sel0", info/ids: sel0 -> "text"

Two indexed columns named "subject" and "content":

"$sel0, $sel1", info/ids: sel0 -> "subject", sel1 -> "content",

Returns

heap-allocated WHERE string

Parameters

index	in: index
info	in/out: parser info
heap	in: memory heap

Definition at line 300 of file fts0sql.cc.

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UNIV_INTERN int fts_get_table_id	(	const fts_table_t *	fts_table,
		char *	table_id
	)

Get the table id.

Returns

number of bytes written

Parameters

fts_table	in: FTS Auxiliary table
table_id	out: table id, must be at least FTS_AUX_MIN_TABLE_ID_LENGTH bytes long

Definition at line 55 of file fts0sql.cc.

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UNIV_INTERN char* fts_get_table_name

(

const fts_table_t *

fts_table

)

Construct the name of an ancillary FTS table.

Returns

own: table name, must be freed with mem_free()

Parameters

fts_table

in: Auxiliary table type

Definition at line 136 of file fts0sql.cc.

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UNIV_INTERN char* fts_get_table_name_prefix

(

const fts_table_t *

fts_table

)

Construct the prefix name of an FTS table.

Returns

own: table name, must be freed with mem_free()

Parameters

fts_table

in: Auxiliary table type

Definition at line 96 of file fts0sql.cc.

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UNIV_INTERN que_t* fts_parse_sql	(	fts_table_t *	fts_table,
		pars_info_t *	info,
		const char *	sql
	)

Parse an SQL string. s is replaced with the table's id.

Returns

query graph

Parameters

fts_table	in: FTS auxiliarry table info
info	in: info struct, or NULL
sql	in: SQL string to evaluate

Definition at line 167 of file fts0sql.cc.

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UNIV_INTERN que_t* fts_parse_sql_no_dict_lock	(	fts_table_t *	fts_table,
		pars_info_t *	info,
		const char *	sql
	)

Parse an SQL string. s is replaced with the table's id.

Returns

query graph

Parameters

fts_table	in: FTS aux table info
info	in: info struct, or NULL
sql	in: SQL string to evaluate

Definition at line 222 of file fts0sql.cc.

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UNIV_INTERN dberr_t fts_sql_commit

(

trx_t *

trx

)

Commit a transaction.

Returns

DB_SUCCESS or error code

Parameters

trx	in: transaction

Definition at line 331 of file fts0sql.cc.

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UNIV_INTERN dberr_t fts_sql_rollback

(

trx_t *

trx

)

Rollback a transaction.

Returns

DB_SUCCESS or error code

Parameters

trx	in: transaction

Definition at line 350 of file fts0sql.cc.

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