implement pg_catalog.pg_type table (#2392)

closes #747
closes #2390

Note, I don't think this quite yet closes the other [connector
issues](https://github.com/GlareDB/glaredb/issues?q=is%3Aissue+is%3Aopen+pg_type).
Many of them rely on transactions to work properly (such as
#1450)

crates/glaredb/src/commands.rs

@@ -316,7 +316,22 @@ impl RunCommand for SltArgs {
 }
 
 fn build_runtime(thread_label: &'static str) -> Result<Runtime> {
-    let runtime = Builder::new_multi_thread()
+    let mut builder = Builder::new_multi_thread();
+
+    // Bump the stack from the default 2MB.
+    //
+    // We reach the limit when planning a query
+    // with nested views.
+    //
+    // Note that Sean observed the stack size only reaching ~300KB when
+    // running in release mode, and so we don't need to bump this
+    // everywhere. However there's definitely improvements to stack
+    // usage that we can make.
+    // see <https://github.com/GlareDB/glaredb/issues/2390>
+    #[cfg(not(release))]
+    builder.thread_stack_size(4 * 1024 * 1024);
+
+    let runtime = builder
         .thread_name_fn(move || {
             static THREAD_ID: AtomicU64 = AtomicU64::new(0);
             let id = THREAD_ID.fetch_add(1, Ordering::Relaxed);

crates/sqlbuiltins/src/builtins.rs

@@ -494,32 +494,32 @@ pub static PG_ATTRIBUTE: Lazy<BuiltinView> = Lazy::new(|| BuiltinView {
     name: "pg_attribute",
     sql: "
 SELECT
-    c.table_oid AS attrelid,
-    c.column_name AS attname,
-    null AS atttypeid,
-    null AS attstattarget,
-    null AS attlen,
-    null AS attnum,
-    null AS attndims,
-    null AS attcacheoff,
-    null AS atttypmod,
-    null AS attbyval,
-    null AS attalign,
-    null AS attstorage,
-    null AS attcompression,
-    null AS attnotnull,
-    null AS atthasdef,
-    null AS atthasmissing,
-    null AS attidentity,
-    null AS attgenerated,
-    null AS attisdropped,
-    null AS attislocal,
-    null AS attinhcount,
-    null AS attcollation,
-    null AS attacl,
-    null AS attoptions,
-    null AS attfdwoptions,
-    null AS attmissingval
+    null           as attacl,
+    ' '            as attalign,
+    false          as attbyval,
+    0              as attcacheoff,
+    0              as attcollation,
+    ' '            as attcompression,
+    null           as attfdwoptions,
+    ' '            as attgenerated,
+    false          as atthasdef,
+    false          as atthasmissing,
+    ' '            as attidentity,
+    0              as attinhcount,
+    false          as attisdropped,
+    false          as attislocal,
+    0::smallint    as attlen,
+    null           as attmissingval,
+    ''             as attname,
+    0              as attndims,
+    false          as attnotnull,
+    0::smallint    as attnum,
+    null           as attoptions,
+    0              as attrelid,
+    0              as attstattarget,
+    ' '            as attstorage,
+    0              as atttypid,
+    0              as atttypmod
 FROM glare_catalog.columns c",
 });
 
@@ -642,7 +642,51 @@ SELECT
 FROM glare_catalog.views;
 ",
 });
-
+pub static PG_TYPE: Lazy<BuiltinView> = Lazy::new(|| BuiltinView {
+    schema: POSTGRES_SCHEMA,
+    name: "pg_type",
+    sql: "
+SELECT 
+
+null as typacl,
+0 as typndims,
+0 as typcollation,
+0 as oid,
+0 as typnamespace,
+0 as typowner,
+0 as typlen,
+false as typbyval,
+'r' as typtype,
+'r' as typcategory,
+false as typispreferred,
+false as typisdefined,
+'r' as typdelim,
+0 as typrelid,
+0 as typsubscript,
+0 as typelem,
+0 as typarray,
+0 as typinput,
+0 as typoutput,
+0 as typreceive,
+0 as typsend,
+0 as typmodin,
+0 as typmodout,
+0 as typanalyze,
+'r' as typalign,
+'r' as typstorage,
+false as typnotnull,
+0 as typbasetype,
+0 as typtypmod,
+'r' as typname,
+null as typdefault,
+null as typdefaultbin
+FROM (VALUES (NULL, NULL, NULL, NULL, 
+    NULL, NULL, NULL, NULL, NULL, NULL, 
+    NULL, NULL, NULL, NULL, NULL, NULL, 
+    NULL, NULL, NULL, NULL, NULL, NULL, 
+    NULL, NULL, NULL, NULL, NULL, NULL,
+    NULL, NULL, NULL, NULL, NULL)) WHERE false",
+});
 impl BuiltinView {
     pub fn builtins() -> Vec<&'static BuiltinView> {
         vec![
@@ -658,6 +702,7 @@ impl BuiltinView {
             &PG_DATABASE,
             &PG_TABLE,
             &PG_VIEWS,
+            &PG_TYPE,
         ]
     }
 }

crates/sqlexec/src/dispatch/mod.rs

@@ -161,7 +161,6 @@ impl ViewPlanner for LocalSessionContext {
                 }))?
                 .build()?;
         }
-
         Ok(df_plan)
     }
 }

testdata/sqllogictests/pg_catalog.slt

@@ -80,3 +80,7 @@ query TT
 select schema_name, table_name from glare_catalog.tables where table_name = 'pg_description' and schema_name = 'pg_catalog_test';
 ----
 pg_catalog_test  pg_description
+
+
+statement ok
+select * from pg_catalog.pg_type;