posthog/hogvm/CHANGELOG.md

# HogQL bytecode changelog 

## 2023-06-30 - 1.0.2

Rolled back cohort matching instructions.

## 2023-06-28 - 1.0.1

Added cohort matching instructions.

```bash
IN_COHORT = 27     # [val2, val1, IREGEX]               # val1 in cohort val2
NOT_IN_COHORT = 28 # [val2, val1, NOT_IREGEX]           # val1 not in cohort val2
```

## 2023-06-28 - 1.0.0 - First version

### Operations added

```bash
FIELD = 1          # [arg3, arg2, arg1, FIELD, 3]       # arg1.arg2.arg3
CALL = 2           # [arg2, arg1, CALL, 'concat', 2]    # concat(arg1, arg2)
AND = 3            # [val3, val2, val1, AND, 3]         # val1 and val2 and val3
OR = 4             # [val3, val2, val1, OR, 3]          # val1 or val2 or val3
NOT = 5            # [val, NOT]                         # not val
PLUS = 6           # [val2, val1, PLUS]                 # val1 + val2
MINUS = 7          # [val2, val1, MINUS]                # val1 - val2
MULTIPLY = 8       # [val2, val1, MULTIPLY]             # val1 * val2
DIVIDE = 9         # [val2, val1, DIVIDE]               # val1 / val2
MOD = 10           # [val2, val1, MOD]                  # val1 % val2
EQ = 11            # [val2, val1, EQ]                   # val1 == val2
NOT_EQ = 12        # [val2, val1, NOT_EQ]               # val1 != val2
GT = 13            # [val2, val1, GT]                   # val1 > val2
GT_EQ = 14         # [val2, val1, GT_EQ]                # val1 >= val2
LT = 15            # [val2, val1, LT]                   # val1 < val2
LT_EQ = 16         # [val2, val1, LT_EQ]                # val1 <= val2
LIKE = 17          # [val2, val1, LIKE]                 # val1 like val2
ILIKE = 18         # [val2, val1, ILIKE]                # val1 ilike val2
NOT_LIKE = 19      # [val2, val1, NOT_LIKE]             # val1 not like val2
NOT_ILIKE = 20     # [val2, val1, NOT_ILIKE]            # val1 not ilike val2
IN = 21            # [val2, val1, IN]                   # val1 in val2
NOT_IN = 22        # [val2, val1, NOT_IN]               # val1 not in val2
REGEX = 23         # [val2, val1, REGEX]                # val1 =~ val2
NOT_REGEX = 24     # [val2, val1, NOT_REGEX]            # val1 !~ val2
IREGEX = 25        # [val2, val1, IREGEX]               # val1 =~* val2
NOT_IREGEX = 26    # [val2, val1, NOT_IREGEX]           # val1 !~* val2
TRUE = 29          # [TRUE]                             # true
FALSE = 30         # [FALSE]                            # false
NULL = 31          # [NULL]                             # null
STRING = 32        # [STRING, 'text']                   # 'text'
INTEGER = 33       # [INTEGER, 123]                     # 123
FLOAT = 34         # [FLOAT, 123.12]                    # 123.01
```

### Functions added

```bash
concat(...)             # concat('test: ', 1, null, '!') == 'test: 1!'
match(string, pattern)  # match('fish', '$fi.*') == true
toString(val)           # toString(true) == 'true'
toInt(val)              # toInt('123') == 123
toFloat(val)            # toFloat('123.2') == 123.2
toUUID(val)             # toUUID('string') == 'string'
```