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Code Issues

Backported CORE-3461: DDL operations fail after backup/restore

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This commit is contained in:
alexpeshkoff 2011-06-01 08:55:06 +00:00
parent 8a7935aef6
commit 136463bda4
1 changed files with 79 additions and 0 deletions
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79
src/burp/restore.epp
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@ -161,6 +161,7 @@ USHORT get_view_base_relation_count(BurpGlobals* tdgbl, const TEXT*, USHORT);
void store_blr_gen_id(BurpGlobals* tdgbl, const TEXT*, SINT64, const ISC_QUAD*);
void update_global_field(BurpGlobals* tdgbl);
void update_view_dbkey_lengths(BurpGlobals* tdgbl);
void fix_system_generators(BurpGlobals* tdgbl);
void general_on_error();
#ifdef DEBUG
UCHAR debug_on = 0; // able to turn this on in the debugger
@ -562,6 +563,9 @@ int RESTORE_restore (const TEXT* file_name,
MISC_release_request_silent(req_handle1);
}
// Fix values of system generators.
fix_system_generators(tdgbl);
COMMIT;
ON_ERROR
general_on_error ();
@ -7841,6 +7845,81 @@ void update_view_dbkey_lengths(BurpGlobals* tdgbl)
MISC_release_request_silent(req_handle2);
}
struct FixGenerator
{
const char* name;
const char* table;
const char* field;
const char* prefix;
};
void fix_generator(BurpGlobals* tdgbl, const FixGenerator* g)
{
/**************************************
*
* f i x G e n e r a t o r
*
**************************************
*
* Functional description
* Set value of system generator based on
* current state of related table.
*
**************************************/
int start = strlen(g->prefix) + 1;
Firebird::string sql;
sql.printf("EXECUTE BLOCK AS "
"DECLARE VARIABLE maxInTable INT; "
"DECLARE VARIABLE currentGen INT; "
"BEGIN "
" SELECT FIRST(1) CAST(SUBSTRING(%s FROM %d FOR 32) AS INT) FROM %s "
" WHERE SUBSTRING(%s FROM %d FOR 32) < '999999999999999999999999999999' "
" AND %s STARTING WITH '%s' ORDER BY 1 DESC INTO :maxInTable; "
" "
" currentGen = gen_id(%s, 0); "
" IF (currentGen < maxInTable) THEN "
" EXECUTE STATEMENT 'SET GENERATOR %s TO ' || maxInTable; "
"END",
/* SELECT 1 */ g->field, start, g->table, g->field, start, g->field, g->prefix,
/* SELECT 2 */ g->name,
/* SET GEN */ g->name);
if (isc_execute_immediate(isc_status, &DB, &gds_trans, 0, sql.c_str()) != 0)
general_on_error();
}
const FixGenerator genToFix[] =
{
{ "RDB$CONSTRAINT_NAME", "RDB$RELATION_CONSTRAINTS", "RDB$CONSTRAINT_NAME", "INTEG_" },
{ "RDB$FIELD_NAME", "RDB$FIELDS", "RDB$FIELD_NAME", "RDB$" },
{ "RDB$INDEX_NAME", "RDB$INDICES", "RDB$INDEX_NAME", "RDB$" },
{ "RDB$INDEX_NAME", "RDB$INDICES", "RDB$INDEX_NAME", "RDB$PRIMARY" },
{ "RDB$INDEX_NAME", "RDB$INDICES", "RDB$INDEX_NAME", "RDB$FOREIGN" },
{ "RDB$TRIGGER_NAME", "RDB$TRIGGERS", "RDB$TRIGGER_NAME", "CHECK_" },
{ NULL, NULL, NULL, NULL }
};
void fix_system_generators(BurpGlobals* tdgbl)
{
/**************************************
*
* f i x A l l G e n e r a t o r s
*
**************************************
*
* Functional description
* Set value of system generators based on
* current state of related tables.
*
**************************************/
for (const FixGenerator* g = genToFix; g->name; ++g)
{
fix_generator(tdgbl, g);
}
}
} // namespace