feat: support float4 and float8 in snowflake

Author: taozhi8833998

pegjs/snowflake.pegjs

@@ -4438,6 +4438,8 @@ KW_LONGTEXT  = "LONGTEXT"i  !ident_start { return 'LONGTEXT'; }
 KW_BIGINT   = "BIGINT"i   !ident_start { return 'BIGINT'; }
 KW_ENUM     = "ENUM"i   !ident_start { return 'ENUM'; }
 KW_FLOAT   = "FLOAT"i   !ident_start { return 'FLOAT'; }
+KW_FLOAT4   = "FLOAT4"i   !ident_start { return 'FLOAT4'; }
+KW_FLOAT8   = "FLOAT8"i   !ident_start { return 'FLOAT8'; }
 KW_DOUBLE   = "DOUBLE"i   !ident_start { return 'DOUBLE'; }
 KW_BIGSERIAL   = "BIGSERIAL"i   !ident_start { return 'BIGSERIAL'; }
 KW_REAL     = "REAL"i   !ident_start { return 'REAL'; }
@@ -4847,9 +4849,9 @@ numeric_type_suffix
     return result
   }
 numeric_type
-  = t:(KW_NUMBER / KW_DECIMAL / KW_INT / KW_BYTEINT / KW_INTEGER / KW_NUMERIC / KW_SMALLINT / KW_TINYINT / KW_BIGINT / KW_FLOAT / KW_DOUBLE / KW_SERIAL / KW_BIGSERIAL /  KW_REAL) __ LPAREN __ l:[0-9]+ __ r:(COMMA __ [0-9]+)? __ RPAREN __ s:numeric_type_suffix? { /* =>  data_type */ return { dataType: t, length: parseInt(l.join(''), 10), scale: r && parseInt(r[2].join(''), 10), parentheses: true, suffix: s }; }
-  / t:(KW_NUMBER / KW_DECIMAL / KW_INT / KW_BYTEINT / KW_INTEGER / KW_NUMERIC / KW_SMALLINT / KW_TINYINT / KW_BIGINT / KW_FLOAT / KW_DOUBLE / KW_SERIAL / KW_BIGSERIAL /  KW_REAL)l:[0-9]+ __ s:numeric_type_suffix? { /* =>  data_type */ return { dataType: t, length: parseInt(l.join(''), 10), suffix: s }; }
-  / t:(KW_NUMBER / KW_DECIMAL / KW_INT / KW_BYTEINT / KW_INTEGER / KW_NUMERIC / KW_SMALLINT / KW_TINYINT / KW_BIGINT / KW_FLOAT / KW_DOUBLE / KW_SERIAL / KW_BIGSERIAL /  KW_REAL) __ s:numeric_type_suffix? __{ /* =>  data_type */ return { dataType: t, suffix: s }; }
+  = t:(KW_NUMBER / KW_DECIMAL / KW_INT / KW_BYTEINT / KW_INTEGER / KW_NUMERIC / KW_SMALLINT / KW_TINYINT / KW_BIGINT / KW_FLOAT / KW_FLOAT4 / KW_FLOAT8 / KW_DOUBLE / KW_SERIAL / KW_BIGSERIAL /  KW_REAL) __ LPAREN __ l:[0-9]+ __ r:(COMMA __ [0-9]+)? __ RPAREN __ s:numeric_type_suffix? { /* =>  data_type */ return { dataType: t, length: parseInt(l.join(''), 10), scale: r && parseInt(r[2].join(''), 10), parentheses: true, suffix: s }; }
+  / t:(KW_NUMBER / KW_DECIMAL / KW_INT / KW_BYTEINT / KW_INTEGER / KW_NUMERIC / KW_SMALLINT / KW_TINYINT / KW_BIGINT / KW_FLOAT / KW_FLOAT4 / KW_FLOAT8 / KW_DOUBLE / KW_SERIAL / KW_BIGSERIAL /  KW_REAL)l:[0-9]+ __ s:numeric_type_suffix? { /* =>  data_type */ return { dataType: t, length: parseInt(l.join(''), 10), suffix: s }; }
+  / t:(KW_NUMBER / KW_DECIMAL / KW_INT / KW_BYTEINT / KW_INTEGER / KW_NUMERIC / KW_SMALLINT / KW_TINYINT / KW_BIGINT / KW_FLOAT / KW_FLOAT4 / KW_FLOAT8 / KW_DOUBLE / KW_SERIAL / KW_BIGSERIAL /  KW_REAL) __ s:numeric_type_suffix? __{ /* =>  data_type */ return { dataType: t, suffix: s }; }
 
 oid_type
   = t:(KW_OID / KW_REGCLASS / KW_REGCOLLATION / KW_REGCONFIG / KW_REGDICTIONARY / KW_REGNAMESPACE / KW_REGOPER / KW_REGOPERATOR / KW_REGPROC / KW_REGPROCEDURE / KW_REGROLE / KW_REGTYPE) { /* => data_type */ return { dataType: t }}

test/snowflake.spec.js

@@ -455,6 +455,18 @@ describe('snowflake', () => {
         'SELECT listagg(DISTINCT "id", ", ") AS "ids" FROM "foo"'
       ]
     },
+    {
+      title: 'float4 and float8 data type',
+      sql: [
+        `SELECT
+      my_column::float AS "my_number",
+      my_column::float4 AS "my_number2",
+      my_column::float8 AS "my_number3"
+    FROM
+      "my_table"`,
+      'SELECT "my_column"::FLOAT AS "my_number", "my_column"::FLOAT4 AS "my_number2", "my_column"::FLOAT8 AS "my_number3" FROM "my_table"'
+      ]
+    },
   ]
   SQL_LIST.forEach(sqlInfo => {
     const { title, sql } = sqlInfo