Add support for index opclass

Author: tomquist

__fixtures__/indexes/custom.sql

@@ -10,4 +10,6 @@ CREATE UNIQUE INDEX uniq_service_when_not_null
   ON schema2.table3 (uid, svc)
   WHERE svc IS NOT NULL;
 
-CREATE UNIQUE INDEX new_unique_idx ON new_example(a, b) INCLUDE (c);
+CREATE UNIQUE INDEX new_unique_idx ON new_example(a, b) INCLUDE (c);
+
+CREATE INDEX CONCURRENTLY idx_with_operator ON boom.merkle_tree USING GIN ( name gin_trgm_ops ( param1 = 32, param2 = true) );

packages/deparser/__tests__/__snapshots__/kitchen-sink.test.ts.snap

@@ -25962,6 +25962,73 @@ exports[`kitchen sink indexes 9`] = `
 
 exports[`kitchen sink indexes 10`] = `"CREATE UNIQUE INDEX new_unique_idx ON new_example ( a, b ) INCLUDE ( c );"`;
 
+exports[`kitchen sink indexes 11`] = `
+{
+  "RawStmt": {
+    "stmt": {
+      "IndexStmt": {
+        "accessMethod": "gin",
+        "concurrent": true,
+        "idxname": "idx_with_operator",
+        "indexParams": [
+          {
+            "IndexElem": {
+              "name": "name",
+              "nulls_ordering": "SORTBY_NULLS_DEFAULT",
+              "opclass": [
+                {
+                  "String": {
+                    "str": "gin_trgm_ops",
+                  },
+                },
+              ],
+              "opclassopts": [
+                {
+                  "DefElem": {
+                    "arg": {
+                      "Integer": {
+                        "ival": 32,
+                      },
+                    },
+                    "defaction": "DEFELEM_UNSPEC",
+                    "defname": "param1",
+                    "location": 624,
+                  },
+                },
+                {
+                  "DefElem": {
+                    "arg": {
+                      "String": {
+                        "str": "true",
+                      },
+                    },
+                    "defaction": "DEFELEM_UNSPEC",
+                    "defname": "param2",
+                    "location": 637,
+                  },
+                },
+              ],
+              "ordering": "SORTBY_DEFAULT",
+            },
+          },
+        ],
+        "relation": {
+          "inh": true,
+          "location": 575,
+          "relname": "merkle_tree",
+          "relpersistence": "p",
+          "schemaname": "boom",
+        },
+      },
+    },
+    "stmt_len": 127,
+    "stmt_location": 526,
+  },
+}
+`;
+
+exports[`kitchen sink indexes 12`] = `"CREATE INDEX CONCURRENTLY idx_with_operator ON boom.merkle_tree USING GIN ( name gin_trgm_ops ( param1 = 32, param2 = true ) );"`;
+
 exports[`kitchen sink insert 1`] = `
 {
   "RawStmt": {

packages/deparser/src/deparser.ts

@@ -1548,6 +1548,14 @@ export default class Deparser {
     const output = [];
     if (node.name) {
       output.push(node.name);
+      if (node.opclass && node.opclass.length) {
+        output.push(this.deparse(node.opclass[0]));
+      }
+      if (node.opclassopts && node.opclassopts.length) {
+        output.push('(');
+        output.push(node.opclassopts.map((opclassopt) => this.deparse(opclassopt)).join(', '));
+        output.push(')');
+      }
       if (node.ordering === 'SORTBY_DESC') {
         output.push('DESC');
       } else if (node.ordering === 'SORTBY_ASC') {