feat: Add quoted mode support

db-service/lib/cqn2sql.js

@@ -34,6 +34,12 @@ class CQN2SQLRenderer {
     this.class = new.target // for IntelliSense
     this.class._init() // is a noop for subsequent calls
     this.model = srv?.model
+
+    // Overwrite smart quoting
+    if (cds.env.sql.names === 'quoted') {
+      this.class.prototype.name = (name) => name.id || name
+      this.class.prototype.quote = (s) => `"${String(s).replace(/"/g, '""')}"`
+    }
   }
 
   static _add_mixins(aspect, mixins) {
@@ -336,7 +342,12 @@ class CQN2SQLRenderer {
     const { ref, as } = from
     const _aliased = as ? s => s + ` as ${this.quote(as)}` : s => s
     if (ref) {
-      const z = ref[0]
+      let z = ref[0]
+      if (cds.env.sql.names === 'quoted') {
+        // use SELECT.from to infer query, cds.infer also expects a query
+        const { target } = SELECT.from(from)
+        z = target?.['@cds.persistence.name'] || ref[0]
+      }
       if (z.args) {
         return _aliased(`${this.quote(this.name(z))}${this.from_args(z.args)}`)
       }

hana/lib/HANAService.js

@@ -607,11 +607,11 @@ class HANAService extends SQLService {
 
         // Calculate final output columns once
         let outputColumns = ''
-        outputColumns = `_path_ as "_path_",${blobs} as "_blobs_",${expands} as "_expands_",${jsonColumn} as "_json_"`
+        outputColumns = `${this.quote('_path_')} as "_path_",${blobs} as "_blobs_",${expands} as "_expands_",${jsonColumn} as "_json_"`
         if (blobColumns.length)
           outputColumns = `${outputColumns},${blobColumns.map(b => `${this.quote(b)} as "${b.replace(/"/g, '""')}"`)}`
         this._outputColumns = outputColumns
-        sql = `*,${path} as _path_`
+        sql = `*,${path} as ${this.quote('_path_')}`
       }
       return sql
     }