lexer changes

Author: limotova

x-pack/plugin/esql/src/main/antlr/lexer/From.g4

@@ -11,7 +11,7 @@ lexer grammar From;
 //
 FROM : 'from'                 -> pushMode(FROM_MODE);
 
-DEV_TIME_SERIES : {this.isDevVersion()}? 'ts' -> pushMode(FROM_MODE);
+DEV_TIME_SERIES : {this.hasMetricsCommand()}? 'ts' -> pushMode(FROM_MODE);
 
 mode FROM_MODE;
 FROM_PIPE : PIPE -> type(PIPE), popMode;

x-pack/plugin/esql/src/main/java/org/elasticsearch/xpack/esql/parser/EsqlConfig.java

@@ -8,12 +8,15 @@
 package org.elasticsearch.xpack.esql.parser;
 
 import org.elasticsearch.Build;
+import org.elasticsearch.xpack.esql.action.EsqlCapabilities;
 
 class EsqlConfig {
 
     // versioning information
     boolean devVersion = Build.current().isSnapshot();
 
+    boolean metricsCommand = EsqlCapabilities.Cap.METRICS_COMMAND.isEnabled();
+
     public boolean isDevVersion() {
         return devVersion;
     }
@@ -25,4 +28,12 @@ boolean isReleaseVersion() {
     public void setDevVersion(boolean dev) {
         this.devVersion = dev;
     }
+
+    public boolean hasMetricsCommand() {
+        return metricsCommand;
+    }
+
+    public void setMetricsCommand(boolean metricsCommand) {
+        this.metricsCommand = metricsCommand;
+    }
 }

x-pack/plugin/esql/src/main/java/org/elasticsearch/xpack/esql/parser/LexerConfig.java

@@ -28,6 +28,10 @@ boolean isDevVersion() {
         return config == null || config.isDevVersion();
     }
 
+    boolean hasMetricsCommand() {
+        return config == null || config.hasMetricsCommand();
+    }
+
     void setEsqlConfig(EsqlConfig config) {
         this.config = config;
     }

x-pack/plugin/esql/src/test/java/org/elasticsearch/xpack/esql/parser/GrammarInDevelopmentParsingTests.java

@@ -45,6 +45,7 @@ private EsqlParser parser() {
 
         // manually disable dev mode (make it production)
         config.setDevVersion(false);
+        config.setMetricsCommand(false);
         return parser;
     }
 }