update keywords

Author: fupelaqu

documentation/keywords.md

@@ -4,17 +4,145 @@
 
 A list of reserved words recognized by the parser for this engine.
 
-```
-SELECT, FROM, WHERE, GROUP BY, HAVING, ORDER BY, UNNEST, AS, CAST,
-COUNT, SUM, AVG, MIN, MAX, FIRST_VALUE, LAST_VALUE, ARRAY_AGG,
-ROW_NUMBER, RANK, LAG, LEAD, DAY, MONTH, YEAR, HOUR, MINUTE, SECOND,
-LAST_DAY, DAYOFWEEK, DAYOFYEAR, WEEK, QUARTER, NANOSECOND, MICROSECOND,
-MILLISECOND, EPOCHDAY, OFFSET, UPPER, LOWER, TRIM, LENGTH, SUBSTRING,
-CONCAT, POSITION, REGEXP_LIKE, REPLACE, ABS, ROUND, FLOOR, CEIL, POWER,
-SQRT, LOG, LOG10, EXP, SIGN, COS, ACOS, SIN, ASIN, TAN, ATAN, ATAN2,
-CASE, WHEN, THEN, ELSE, END, COALESCE, ISNULL, ISNOTNULL, NULLIF,
-CURRENT_DATE, CURDATE, TODAY, NOW, CURRENT_TIME, CURTIME, CURRENT_TIMESTAMP,
-LIKE, RLIKE, IN, NOT IN, BETWEEN, IS NULL, IS NOT NULL, AND, OR, NOT, INTERVAL
-```
+## Main clauses
+SELECT  
+FROM  
+UNNEST  
+WHERE  
+GROUP BY  
+HAVING  
+ORDER BY  
+OFFSET  
+
+## Aliases and type conversion
+AS
+CAST  
+TRY_CAST  
+CONVERT  
+::  
+
+## Aggregates
+COUNT  
+DISTINCT  
+SUM  
+AVG  
+MIN  
+MAX  
+OVER  
+FIRST_VALUE  
+LAST_VALUE  
+ARRAY_AGG 
+
+## String functions
+UPPER  
+UCASE  
+LOWER  
+LCASE  
+TRIM  
+LTRIM  
+RTRIM  
+LENGTH  
+SUBSTRING  
+SUBSTR  
+CONCAT  
+POSITION  
+REGEXP_LIKE  
+REGEXP  
+REPLACE  
+REVERSE
+
+## Math functions
+ABS  
+ROUND  
+FLOOR  
+CEIL  
+POWER 
+POW  
+SQRT  
+LOG  
+LOG10  
+EXP  
+SIGN  
+COS  
+ACOS  
+SIN  
+ASIN  
+TAN  
+ATAN  
+ATAN2
+
+## Conditional functions
+CASE  
+WHEN  
+THEN  
+ELSE  
+END  
+COALESCE  
+ISNULL  
+ISNOTNULL  
+NULLIF
+
+## Date/Time/Datetime/Timestamp functions
+YEAR  
+QUARTER  
+MONTH  
+WEEK  
+DAY  
+HOUR  
+MINUTE  
+SECOND  
+MILLISECOND  
+MICROSECOND  
+NANOSECOND  
+EPOCHDAY  
+OFFSET_SECONDS
+LAST_DAY  
+WEEKDAY  
+YEARDAY
+INTERVAL  
+CURRENT_DATE  
+CURDATE  
+TODAY  
+NOW  
+CURRENT_TIME  
+CURTIME  
+CURRENT_DATETIME  
+CURRENT_TIMESTAMP  
+DATE_ADD  
+DATEADD  
+DATE_SUB  
+DATESUB  
+DATETIME_ADD  
+DATETIMEADD  
+DATETIME_SUB  
+DATETIMESUB  
+DATE_DIFF  
+DATEDIFF  
+DATE_FORMAT  
+DATE_PARSE  
+DATETIME_FORMAT  
+DATETIME_PARSE  
+DATE_TRUNC
+EXTRACT  
+
+## Geo functions
+POINT  
+ST_DISTANCE  
+DISTANCE  
+
+## Conditional operators
+LIKE  
+RLIKE  
+IN  
+NOT IN  
+BETWEEN  
+NOT BETWEEN
+IS NULL  
+IS NOT NULL  
+
+## Logical operators
+AND  
+OR  
+NOT  
 
 [Back to index](./README.md)

sql/src/main/scala/app/softnetwork/elastic/sql/function/math/package.scala

@@ -23,7 +23,9 @@ package object math {
   case object Exp extends Expr("EXP") with MathOp
   case object Log extends Expr("LOG") with MathOp
   case object Log10 extends Expr("LOG10") with MathOp
-  case object Pow extends Expr("POW") with MathOp
+  case object Pow extends Expr("POW") with MathOp {
+    override def words: List[String] = List("POWER", sql)
+  }
   case object Sqrt extends Expr("SQRT") with MathOp
   case object Sign extends Expr("SIGN") with MathOp {
     override def baseType: SQLNumeric = SQLTypes.TinyInt

sql/src/main/scala/app/softnetwork/elastic/sql/time/package.scala

@@ -55,6 +55,7 @@ package object time {
       override val timeField: String = "EPOCH_DAY"
     }
     case object OFFSET_SECONDS extends Expr("OFFSET") with TimeField {
+      override lazy val words: List[String] = List("OFFSET_SECONDS", sql)
       override val timeField: String = "OFFSET_SECONDS"
     }
   }