add Snowflake (snowsql) support and give an example configuration

Author: Kyle Foreman

SQLTools.sublime-settings

@@ -15,7 +15,8 @@
         "sqlite"  : "sqlite3",
         "vertica" : "vsql",
         "firebird": "isql",
-        "sqsh"    : "sqsh"
+        "sqsh"    : "sqsh",
+        "snowsql" : "snowsql"
     },
 
     // If there is no SQL selected, use "expanded" region.
@@ -511,6 +512,36 @@
                     "before": ["\\set semicolon_cmd=\"\\go -mpretty -l\""]
                 }
             }
+        },
+
+        "snowsql": {
+            "options": [],
+            "args": "-u {user} -a {account} -d {database} --authenticator {auth} -K",
+            "queries": {
+                "execute": {
+                    "options": [],
+                },
+                "show records": {
+                    "query": "SELECT * FROM {0} LIMIT {1};"
+                },
+                "desc table": {
+                    "query": "DESC TABLE {0};",
+                    "options": ["-o", "output_format=plain", 
+                                "-o", "timing=False"]
+                },
+                "desc": {
+                    "query": "SELECT TABLE_SCHEMA || '.' || TABLE_NAME AS tbl FROM INFORMATION_SCHEMA.TABLES;",
+                    "options": ["-o", "output_format=plain", 
+                                "-o", "header=False", 
+                                "-o", "timing=False"]
+                },
+                "columns": {
+                    "query": "SELECT TABLE_NAME || '.' || COLUMN_NAME AS col FROM INFORMATION_SCHEMA.COLUMNS",
+                    "options": ["-o", "output_format=plain", 
+                                "-o", "header=False", 
+                                "-o", "timing=False"]
+                }
+            }
         }
     }
 }

SQLToolsConnections.sublime-settings

@@ -82,6 +82,16 @@
       // note the forward slashes (if path is used)
       "database": "c:/firebird/examples/empbuild/employee.fdb",
       "encoding": "utf-8"
+    },
+    "Connection Snowflake": {
+      "type"    : "snowsql",
+      "database": "database",
+      // for possible authentication configurations see
+      // https://docs.snowflake.net/manuals/user-guide/snowsql-start.html#authenticator
+      // if using "snowflake", need to set SNOWSQL_PWD environment variable
+      "user"    : "user@example.com",
+      "account" : "account_name",
+      "auth":   : "snowflake | externalbrowser | <okta-url>"
     }
   */
   },