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Custom reloptions for table AM

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Let table AM define custom reloptions for its tables. This allows specifying
AM-specific parameters by the WITH clause when creating a table.

The reloptions, which could be used outside of table AM, are now extracted
into the CommonRdOptions data structure.  These options could be by decision
of table AM directly specified by a user or calculated in some way.

The new test module test_tam_options evaluates the ability to set up custom
reloptions and calculate fields of CommonRdOptions on their base.

The code may use some parts from prior work by Hao Wu.

Discussion: https://postgr.es/m/CAPpHfdurb9ycV8udYqM%3Do0sPS66PJ4RCBM1g-bBpvzUfogY0EA%40mail.gmail.com
Discussion: https://postgr.es/m/AMUA1wBBBxfc3tKRLLdU64rb.1.1683276279979.Hmail.wuhao%40hashdata.cn
Reviewed-by: Reviewed-by: Pavel Borisov, Matthias van de Meent, Jess Davis
This commit is contained in:
Alexander Korotkov
2024-04-08 11:23:28 +03:00
parent 6f3d8d5e7c
commit 9bd99f4c26
29 changed files with 639 additions and 161 deletions
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63
src/backend/commands/tablecmds.c
View File

@ -720,6 +720,7 @@ DefineRelation(CreateStmt *stmt, char relkind, Oid ownerId,
ObjectAddress address;
LOCKMODE parentLockmode;
Oid accessMethodId = InvalidOid;
const TableAmRoutine *tableam = NULL;
/*
* Truncate relname to appropriate length (probably a waste of time, as
@ -855,6 +856,28 @@ DefineRelation(CreateStmt *stmt, char relkind, Oid ownerId,
if (!OidIsValid(ownerId))
ownerId = GetUserId();
/*
* For relations with table AM and partitioned tables, select access
* method to use: an explicitly indicated one, or (in the case of a
* partitioned table) the parent's, if it has one.
*/
if (stmt->accessMethod != NULL)
{
Assert(RELKIND_HAS_TABLE_AM(relkind) || relkind == RELKIND_PARTITIONED_TABLE);
accessMethodId = get_table_am_oid(stmt->accessMethod, false);
}
else if (RELKIND_HAS_TABLE_AM(relkind) || relkind == RELKIND_PARTITIONED_TABLE)
{
if (stmt->partbound)
{
Assert(list_length(inheritOids) == 1);
accessMethodId = get_rel_relam(linitial_oid(inheritOids));
}
if (RELKIND_HAS_TABLE_AM(relkind) && !OidIsValid(accessMethodId))
accessMethodId = get_table_am_oid(default_table_access_method, false);
}
/*
* Parse and validate reloptions, if any.
*/
@ -863,6 +886,12 @@ DefineRelation(CreateStmt *stmt, char relkind, Oid ownerId,
switch (relkind)
{
case RELKIND_RELATION:
case RELKIND_TOASTVALUE:
case RELKIND_MATVIEW:
tableam = GetTableAmRoutineByAmOid(accessMethodId);
(void) tableam_reloptions(tableam, relkind, reloptions, NULL, true);
break;
case RELKIND_VIEW:
(void) view_reloptions(reloptions, true);
break;
@ -870,7 +899,12 @@ DefineRelation(CreateStmt *stmt, char relkind, Oid ownerId,
(void) partitioned_table_reloptions(reloptions, true);
break;
default:
(void) heap_reloptions(relkind, reloptions, true);
if (OidIsValid(accessMethodId))
{
tableam = GetTableAmRoutineByAmOid(accessMethodId);
(void) tableam_reloptions(tableam, relkind, reloptions, NULL, true);
}
break;
}
if (stmt->ofTypename)
@ -962,28 +996,6 @@ DefineRelation(CreateStmt *stmt, char relkind, Oid ownerId,
}
}
/*
* For relations with table AM and partitioned tables, select access
* method to use: an explicitly indicated one, or (in the case of a
* partitioned table) the parent's, if it has one.
*/
if (stmt->accessMethod != NULL)
{
Assert(RELKIND_HAS_TABLE_AM(relkind) || relkind == RELKIND_PARTITIONED_TABLE);
accessMethodId = get_table_am_oid(stmt->accessMethod, false);
}
else if (RELKIND_HAS_TABLE_AM(relkind) || relkind == RELKIND_PARTITIONED_TABLE)
{
if (stmt->partbound)
{
Assert(list_length(inheritOids) == 1);
accessMethodId = get_rel_relam(linitial_oid(inheritOids));
}
if (RELKIND_HAS_TABLE_AM(relkind) && !OidIsValid(accessMethodId))
accessMethodId = get_table_am_oid(default_table_access_method, false);
}
/*
* Create the relation. Inherited defaults and constraints are passed in
* for immediate handling --- since they don't need parsing, they can be
@ -15571,7 +15583,8 @@ ATExecSetRelOptions(Relation rel, List *defList, AlterTableType operation,
case RELKIND_RELATION:
case RELKIND_TOASTVALUE:
case RELKIND_MATVIEW:
(void) heap_reloptions(rel->rd_rel->relkind, newOptions, true);
(void) table_reloptions(rel, rel->rd_rel->relkind,
newOptions, NULL, true);
break;
case RELKIND_PARTITIONED_TABLE:
(void) partitioned_table_reloptions(newOptions, true);
@ -15684,7 +15697,7 @@ ATExecSetRelOptions(Relation rel, List *defList, AlterTableType operation,
defList, "toast", validnsps, false,
operation == AT_ResetRelOptions);
(void) heap_reloptions(RELKIND_TOASTVALUE, newOptions, true);
(void) table_reloptions(rel, RELKIND_TOASTVALUE, newOptions, NULL, true);
memset(repl_val, 0, sizeof(repl_val));
memset(repl_null, false, sizeof(repl_null));