On Thu, Jan 16, 2014 at 9:03 AM, Vik Fearing <[email protected]> wrote:
> New patch attached, with regression tests.
Thanks for the new version, I have spent some time looking at it:
- Patch compiles without warnings.
- Done some manual testing with CREATE/ALTER TABLESPACE WITH and
checked pg_tablespace, it worked fine.
- However, regression tests are failing because
src/test/regress/output/tablespace.source has an incorrect output, it
is necessary to replace that:
/home/vik/postgresql/9.4/git/src/test/regress/testtablespace
by that:
@testtablespace@
This is something I have actually fixed that in the attached patch.
So, except for the regression output problem, I think that the code is
clean so marking it as "Ready for committer" on the commit fest app.
Thanks,
--
Michael
diff --git a/doc/src/sgml/ref/create_tablespace.sgml b/doc/src/sgml/ref/create_tablespace.sgml
index 89c8907..04c5fb8 100644
--- a/doc/src/sgml/ref/create_tablespace.sgml
+++ b/doc/src/sgml/ref/create_tablespace.sgml
@@ -21,7 +21,10 @@ PostgreSQL documentation
<refsynopsisdiv>
<synopsis>
-CREATE TABLESPACE <replaceable class="parameter">tablespace_name</replaceable> [ OWNER <replaceable class="parameter">user_name</replaceable> ] LOCATION '<replaceable class="parameter">directory</replaceable>'
+CREATE TABLESPACE <replaceable class="parameter">tablespace_name</replaceable>
+ [ OWNER <replaceable class="parameter">user_name</replaceable> ]
+ LOCATION '<replaceable class="parameter">directory</replaceable>'
+ [ WITH ( <replaceable class="PARAMETER">tablespace_option</replaceable> = <replaceable class="PARAMETER">value</replaceable> [, ... ] ) ]
</synopsis>
</refsynopsisdiv>
@@ -87,6 +90,24 @@ CREATE TABLESPACE <replaceable class="parameter">tablespace_name</replaceable> [
</para>
</listitem>
</varlistentry>
+
+ <varlistentry>
+ <term><replaceable class="parameter">tablespace_option</replaceable></term>
+ <listitem>
+ <para>
+ A tablespace parameter to be set or reset. Currently, the only
+ available parameters are <varname>seq_page_cost</> and
+ <varname>random_page_cost</>. Setting either value for a particular
+ tablespace will override the planner's usual estimate of the cost of
+ reading pages from tables in that tablespace, as established by
+ the configuration parameters of the same name (see
+ <xref linkend="guc-seq-page-cost">,
+ <xref linkend="guc-random-page-cost">). This may be useful if one
+ tablespace is located on a disk which is faster or slower than the
+ remainder of the I/O subsystem.
+ </para>
+ </listitem>
+ </varlistentry>
</variablelist>
</refsect1>
diff --git a/src/backend/commands/tablespace.c b/src/backend/commands/tablespace.c
index 07f5221..c7aedc0 100644
--- a/src/backend/commands/tablespace.c
+++ b/src/backend/commands/tablespace.c
@@ -234,6 +234,7 @@ CreateTableSpace(CreateTableSpaceStmt *stmt)
Oid tablespaceoid;
char *location;
Oid ownerId;
+ Datum newOptions;
/* Must be super user */
if (!superuser())
@@ -317,7 +318,16 @@ CreateTableSpace(CreateTableSpaceStmt *stmt)
values[Anum_pg_tablespace_spcowner - 1] =
ObjectIdGetDatum(ownerId);
nulls[Anum_pg_tablespace_spcacl - 1] = true;
- nulls[Anum_pg_tablespace_spcoptions - 1] = true;
+
+ /* Generate new proposed spcoptions (text array) */
+ newOptions = transformRelOptions((Datum) 0,
+ stmt->options,
+ NULL, NULL, false, false);
+ (void) tablespace_reloptions(newOptions, true);
+ if (newOptions != (Datum) 0)
+ values[Anum_pg_tablespace_spcoptions - 1] = newOptions;
+ else
+ nulls[Anum_pg_tablespace_spcoptions - 1] = true;
tuple = heap_form_tuple(rel->rd_att, values, nulls);
diff --git a/src/backend/nodes/copyfuncs.c b/src/backend/nodes/copyfuncs.c
index fb4ce2c..506ceb8 100644
--- a/src/backend/nodes/copyfuncs.c
+++ b/src/backend/nodes/copyfuncs.c
@@ -3370,6 +3370,7 @@ _copyCreateTableSpaceStmt(const CreateTableSpaceStmt *from)
COPY_STRING_FIELD(tablespacename);
COPY_STRING_FIELD(owner);
COPY_STRING_FIELD(location);
+ COPY_NODE_FIELD(options);
return newnode;
}
diff --git a/src/backend/nodes/equalfuncs.c b/src/backend/nodes/equalfuncs.c
index ccf7267..ae68b86 100644
--- a/src/backend/nodes/equalfuncs.c
+++ b/src/backend/nodes/equalfuncs.c
@@ -1610,6 +1610,7 @@ _equalCreateTableSpaceStmt(const CreateTableSpaceStmt *a, const CreateTableSpace
COMPARE_STRING_FIELD(tablespacename);
COMPARE_STRING_FIELD(owner);
COMPARE_STRING_FIELD(location);
+ COMPARE_NODE_FIELD(options);
return true;
}
diff --git a/src/backend/parser/gram.y b/src/backend/parser/gram.y
index f0b9507..9b76ac9 100644
--- a/src/backend/parser/gram.y
+++ b/src/backend/parser/gram.y
@@ -3588,12 +3588,13 @@ opt_procedural:
*
*****************************************************************************/
-CreateTableSpaceStmt: CREATE TABLESPACE name OptTableSpaceOwner LOCATION Sconst
+CreateTableSpaceStmt: CREATE TABLESPACE name OptTableSpaceOwner LOCATION Sconst opt_reloptions
{
CreateTableSpaceStmt *n = makeNode(CreateTableSpaceStmt);
n->tablespacename = $3;
n->owner = $4;
n->location = $6;
+ n->options = $7;
$$ = (Node *) n;
}
;
diff --git a/src/include/nodes/parsenodes.h b/src/include/nodes/parsenodes.h
index 9a3a5d7..6e721c2 100644
--- a/src/include/nodes/parsenodes.h
+++ b/src/include/nodes/parsenodes.h
@@ -1669,6 +1669,7 @@ typedef struct CreateTableSpaceStmt
char *tablespacename;
char *owner;
char *location;
+ List *options;
} CreateTableSpaceStmt;
typedef struct DropTableSpaceStmt
diff --git a/src/test/regress/input/tablespace.source b/src/test/regress/input/tablespace.source
index 4f17b09..c25b838 100644
--- a/src/test/regress/input/tablespace.source
+++ b/src/test/regress/input/tablespace.source
@@ -1,3 +1,13 @@
+-- create a tablespace using WITH clause
+CREATE TABLESPACE testspacewith LOCATION '@testtablespace@' WITH (some_nonexistent_parameter = true); -- fail
+CREATE TABLESPACE testspacewith LOCATION '@testtablespace@' WITH (random_page_cost = 3.0); -- ok
+
+-- check to see the parameter was used
+SELECT spcoptions FROM pg_tablespace WHERE spcname = 'testspacewith';
+
+-- drop the tablespace so we can re-use the location
+DROP TABLESPACE testspacewith;
+
-- create a tablespace we can use
CREATE TABLESPACE testspace LOCATION '@testtablespace@';
diff --git a/src/test/regress/output/tablespace.source b/src/test/regress/output/tablespace.source
index 2868169..cc5648e 100644
--- a/src/test/regress/output/tablespace.source
+++ b/src/test/regress/output/tablespace.source
@@ -1,3 +1,16 @@
+-- create a tablespace using WITH clause
+CREATE TABLESPACE testspacewith LOCATION '@testtablespace@' WITH (some_nonexistent_parameter = true); -- fail
+ERROR: unrecognized parameter "some_nonexistent_parameter"
+CREATE TABLESPACE testspacewith LOCATION '@testtablespace@' WITH (random_page_cost = 3.0); -- ok
+-- check to see the parameter was used
+SELECT spcoptions FROM pg_tablespace WHERE spcname = 'testspacewith';
+ spcoptions
+------------------------
+ {random_page_cost=3.0}
+(1 row)
+
+-- drop the tablespace so we can re-use the location
+DROP TABLESPACE testspacewith;
-- create a tablespace we can use
CREATE TABLESPACE testspace LOCATION '@testtablespace@';
-- try setting and resetting some properties for the new tablespace
--
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