feat: add MONTH?HOUR function support(PG) - WIP

packages/nocodb-sdk/src/lib/formulaHelpers.ts

@@ -402,10 +402,30 @@ const formulas: Record<string, FormulaMeta> = {
         rqd: 1,
       },
     },
-    description: 'Formats a datetime into a string (YYYY-MM-DD)',
+    description: 'Extract day from a date(1-31)',
     examples: ['DATESTR({column1})'],
     returnType: FormulaDataTypes.STRING,
   },
+  MONTH: {
+    validation: {
+      args: {
+        rqd: 1,
+      },
+    },
+    description: 'Extract month from a date(1-12)',
+    examples: ['MONTH({column1})'],
+    returnType: FormulaDataTypes.STRING,
+  },
+  HOUR: {
+    validation: {
+      args: {
+        rqd: 1,
+      },
+    },
+    description: 'Extract hour from a datetime(0-23)',
+    examples: ['HOUR({column1})'],
+    returnType: FormulaDataTypes.STRING,
+  },
   DATETIME_DIFF: {
     validation: {
       args: {

packages/nocodb/src/db/functionMappings/pg.ts

@@ -152,6 +152,24 @@ const pg = {
       ),
     };
   },
+  MONTH: async ({ fn, knex, pt, colAlias }: MapFnArgs) => {
+    return {
+      builder: knex.raw(
+        `EXTRACT('Month' FROM DATE ${
+          (await fn(pt?.arguments[0])).builder
+        }) ${colAlias}`,
+      ),
+    };
+  },
+  HOUR: async ({ fn, knex, pt, colAlias }: MapFnArgs) => {
+    return {
+      builder: knex.raw(
+        `EXTRACT('Hour' FROM  (${
+          (await fn(pt?.arguments[0])).builder
+        })::TIMESTAMP) ${colAlias}`,
+      ),
+    };
+  },
   AND: async (args: MapFnArgs) => {
     return {
       builder: args.knex.raw(