fix: conversion error on identifiers

Things break when using indentifiers for tables/columns/etc. with spaces
in the name--need to quote it.

Author: soedirgo

src/lib/sql/columns.sql

@@ -1,4 +1,3 @@
--- We can uniquely point to a specific column using table_id + ordinal_position.
 SELECT
   c.oid AS table_id,
   table_schema AS schema,
@@ -19,5 +18,5 @@ SELECT
   is_updatable::boolean
 FROM
   information_schema.columns
-  JOIN pg_class c ON c.relnamespace = table_schema::text::regnamespace
-  AND c.relname = table_name::text
+  JOIN pg_class c ON quote_ident(table_schema)::regnamespace = c.relnamespace
+  AND c.relname = table_name

src/lib/sql/grants.sql

@@ -10,5 +10,5 @@ SELECT
   with_hierarchy :: boolean
 FROM
   information_schema.role_table_grants
-  INNER JOIN pg_class c ON table_schema::text::regnamespace = c.relnamespace
-  AND table_name::text = c.relname
+  JOIN pg_class c ON quote_ident(table_schema)::regnamespace = c.relnamespace
+  AND table_name = c.relname

src/lib/sql/schemas.sql

@@ -9,4 +9,4 @@ SELECT
   sql_path
 FROM
   information_schema.schemata
-  JOIN pg_namespace nsp ON schema_name::text::regnamespace = nsp.oid
+  JOIN pg_namespace nsp ON schema_name = nsp.nspname

src/lib/sql/tables.sql

@@ -5,9 +5,9 @@ SELECT
   table_name AS name,
   is_insertable_into,
   is_typed,
-  pg_total_relation_size(table_schema || '.' || table_name) :: bigint AS bytes,
+  pg_total_relation_size(format('%I.%I', table_schema, table_name))::bigint AS bytes,
   pg_size_pretty(
-    pg_total_relation_size(table_schema || '.' || table_name)
+    pg_total_relation_size(format('%I.%I', table_schema, table_name))
   ) AS size,
   seq_scan :: bigint AS seq_scan_count,
   seq_tup_read :: bigint AS seq_row_read_count,
@@ -30,8 +30,8 @@ SELECT
   autoanalyze_count :: bigint
 FROM
   information_schema.tables
-  JOIN pg_class c ON c.relnamespace = table_schema::text::regnamespace
-  AND c.relname = table_name::text
+  JOIN pg_class c ON quote_ident(table_schema)::regnamespace = c.relnamespace
+  AND c.relname = table_name
   LEFT JOIN pg_stat_user_tables ON pg_stat_user_tables.schemaname = tables.table_schema
   AND pg_stat_user_tables.relname = tables.table_name
 WHERE

src/lib/sql/views.sql

@@ -10,5 +10,5 @@ SELECT
   is_trigger_insertable_into
 FROM
   information_schema.views
-  INNER JOIN pg_class c ON table_schema::text::regnamespace = c.relnamespace
-  AND table_name::text = c.relname
+  JOIN pg_class c ON quote_ident(table_schema)::regnamespace = c.relnamespace
+  AND table_name = c.relname