ThoughtSpot allows you to create row level security rules using expressions. If an expression evaluates to “true” for a particular row and group combination, that group will be able to see that row. This reference lists the various operators and functions you can use to create rules.
For information on how to use the row level security functions and operators, see About RuleBased Row Level Security. There is a special variable called ts_groups, which you can use when creating row level security rules. It fetches a list of the groups that the currently logged in user belongs to. For each row, f the expression in the rule evaluates to ‘true’ for any one of these groups, that row will be shown to the user.
You can also see this list of operators and examples from within the Rule Builder by selecting Rule Assistant.
Conversion functions
These functions can be used to convert data from one data type to another. Conversion to or from date data types is not supported.
Function  Description  Examples 

to_bool 
Returns the input as a boolean (true or false).  to_bool (0) = false to_bool (married) 
to_date 
Accepts a date represented as an integer or text string, and a second string parameter that can include strptime date formatting elements. Replaces all the valid strptime date formatting elements with their string counterparts and returns the result. Does not accept epoch formatted dates as input.  to_date (date_sold, '%Y%m%d') 
to_double 
Returns the input as a double.  to_double ('3.14') = 3.14 to_double (revenue * .01) 
to_integer 
Returns the input as an integer.  to_integer ('45') + 1 = 46 to_integer (price + tax  cost) 
to_string 
Returns the input as a text string.  to_string (45 + 1) = '46'
to_string (revenue  cost) 
Date functions
Function  Description  Examples 

add_days 
Returns the result of adding the specified number of days to the given date.  add_days (01/30/2015, 5) = 02/04/2015 add_days (invoiced, 30) 
date 
Returns the date portion of a given date.  date (home visit) 
day 
Returns the number (131) of the day for the given date.  day (01/15/2014) = 15 day (date ordered) 
day_number_of_week 
Returns the number (17) of the day in a week for the given date with 1 being Monday and 7 being Sunday.  day_number_of_week (01/30/2015) = 6 day_number_of_week (shipped) 
day_number_of_quarter 
Returns the number of the day in a quarter for a given date.  day_number_of_quarter (01/30/2015) 
day_number_of_week 
Returns the number of the day in a week for a given date.  day_number_of_week(01/15/2014) > 3 
day_number_of_year 
Returns the number (1366) of the day in a year for the given date.  day_number_of_year (01/30/2015) = 30 day_number_of_year (invoiced) 
day_of_week 
Returns the day of the week for the given date.  day_of week (01/30/2015) = Friday day_of_week (serviced) 
diff_days 
Subtracts the second date from the first date and returns the result in number of days, rounded down if not exact.  diff_days (01/15/2014, 01/17/2014) = 2 diff_days (purchased, shipped) 
diff_time 
Subtracts the second date from the first date and returns the result in number of seconds.  diff_time (01/01/2014, 01/01/2014) = 86,400 diff_time (clicked, submitted) 
hour_of_day 
Returns the hour of the day for the given date.  hour_of_day (received) 
is_weekend 
Returns true if the given date falls on a Saturday or Sunday.  is_weekend (01/31/2015) = true is_weekend (emailed) 
month 
Returns the month from the given date.  month (01/15/2014) = January month (date ordered) 
month_number 
Returns the number (112) of the month for the given date.  month_number (09/20/2014) = 9 month_number (purchased) 
month_number_of_quarter 
Returns the month (112) number for the given date in a quarter.  month_number_of_quarter (02/20/2018) > 9 
now 
Returns the current timestamp.  now () 
start_of_month 
Returns MMM yyyy for the first day of the month. Your installation configuration can override this setting so that it returns a different format such as MM/dd/yyyy . Speak with your ThoughtSpot administrator for information on doing this. 
start_of_month ( 01/31/2015 ) = Jan FY 2015 start_of_month (shipped) 
start_of_quarter 
Returns the date for the first day of the quarter for the given date.  start_of_quarter ( 09/18/2015 ) = Q3 FY 2015 start_of_quarter (sold) 
start_of_week 
Returns the date for the first day of the week for the given date.  start_of_week ( 06/01/2015 ) = 05/30/2015 Week start_of_week (emailed) 
start_of_year 
Returns the date for the first day of the year for the given date.  start_of_year ( 02/15/2015 ) = FY 2015 start_of_year (joined) 
time 
Returns the time portion of a given date.  time (3/1/2002 10:32) = 10:32 time (call began) 
week_number_of_month 
Returns the week number for the given date in a month.  week_number_of_month(03/23/2017) = 3 
week_number_of_quarter 
Returns the week number for the given date in a quarter.  week_number_of_quarter(04/03/2017)> 2 
week_number_of_year 
Returns the week number for the given date in a year.  week_number_of_year(04/03/2017) = 20 
year 
Returns the year from the given date.  year (01/15/2014) = 2014 year (date ordered) 
Mixed functions
These functions can be used with text and numeric data types.
Function  Description  Examples 

!= 
Returns true if the first value is not equal to the second value. 
3 != 2 = true revenue != 1000000 
< 
Returns true if the first value is less than the second value.  3 < 2 = false revenue < 1000000 
<= 
Returns true if the first value is less than or equal to the second value.  1 <= 2 = true revenue <= 1000000 
= 
Returns true if the first value is equal to the second value.  2 = 2 = true revenue = 1000000 
> 
Returns true if the first value is greater than the second value.  3 > 2 = true revenue > 1000000 
>= 
Returns true if the first value is greater than or equal to the second value.  3 >= 2 = true revenue >= 1000000 
greatest 
Returns the larger of the values.  greatest (20, 10) = 20 greatest (q1 revenue, q2 revenue) 
least 
Returns the smaller of the values.  least (20, 10) = 10 least (q1 revenue, q2 revenue) 
Number functions
Function  Description  Examples 

* 
Returns the result of multiplying both numbers.  3 * 2 = 6 price * taxrate 
+ 
Returns the result of adding both numbers.  1 + 2 = 3 price + shipping 
 
Returns the result of subtracting the second number from the first.  3  2 = 1 revenue  tax 
/ 
Returns the result of dividing the first number by the second.  6 / 3 = 2 markup / retail price 
^ 
Returns the first number raised to the power of the second.  3 ^ 2 = 9 width ^ 2 
abs 
Returns the absolute value.  abs (10) = 10 abs (profit) 
acos 
Returns the inverse cosine in degrees.  acos (0.5) = 60 acos (cossatelliteangle) 
asin 
Returns the inverse sine (specified in degrees).  asin (0.5) = 30 asin (sinsatelliteangle) 
atan 
Returns the inverse tangent in degrees.  atan (1) = 45 atan (tansatelliteangle) 
atan2 
Returns the inverse tangent in degrees.  atan2 (10, 10) = 45 atan2 (longitude, latitude) 
cbrt 
Returns the cube root of a number.  cbrt (27) = 3 cbrt (volume) 
ceil 
Returns the smallest following integer.  ceil (5.9) = 6 ceil (growth rate) 
cos 
Returns the cosine of an angle (specified in degrees).  cos (63) = 0.45 cos (beam angle) 
cube 
Returns the cube of a number.  cube (3) = 27 cube (length) 
exp 
Returns Euler’s number (~2.718) raised to a power.  exp (2) = 7.38905609893 exp (growth) 
exp2 
Returns 2 raised to a power.  exp2 (3) = 8 exp2 (growth) 
floor 
Returns the largest previous integer.  floor (5.1) = 5 floor (growth rate) 
ln 
Returns the natural logarithm.  ln (7.38905609893) = 2 ln (distance) 
log10 
Returns the logarithm with base 10.  log10 (100) = 2 log10 (volume) 
log2 
Returns the logarithm with base 2 (binary logarithm).  log2 (32) = 5 log2 (volume) 
mod 
Returns the remainder of first number divided by the second number.  mod (8, 3) = 2 mod ( revenue , quantity ) 
pow 
Returns the first number raised to the power of the second number.  pow (5, 2) = 25 pow (width, 2) 
random 
Returns a random number between 0 and 1.  random ( ) = .457718 random ( ) 
round 
Returns the first number rounded to the second number (the default is 1).  round (35.65, 10) = 40 round (battingavg, 100) 
safe_divide 
Returns the result of dividing the first number by the second. If the second number is 0, returns 0 instead of NaN (not a number).  safe_divide (12, 0) = 0 safe_divide (total_cost, units) 
sign 
Returns +1 if the number is greater than zero, 1 if less than zero, 0 if zero.  sign (250) = 1 sign (growth rate) 
sin 
Returns the sine of an angle (specified in degrees).  sin (35) = 0.57 sin (beam angle) 
spherical_distance 
Returns the distance in km between two points on Earth.  spherical_distance (37.465191, 122.153617, 37.421962, 122.142174) = 4,961.96 spherical_distance (start_latitude, start_longitude, start_latitude, start_longitude) 
sq 
Returns the square of a numeric value.  sq (9) = 81 sq (width) 
sqrt 
Returns the square root.  sqrt (9) = 3 sqrt (area) 
tan 
Returns the tangent of an angle (specified in degrees).  tan (35) = 0.7 tan (beam angle) 
Operators
Operator  Description  Examples 

and 
Returns true when both conditions are true, otherwise returns false.  (1 = 1) and (3 > 2) = true lastname = 'smith' and state ='texas'
Note: Not available for row level security (RLS) formulas.

if…then…else 
Conditional operator.  if (3 > 2) then 'bigger' else 'not bigger' if (cost > 500) then 'flag' else 'approve' 
ifnull 
Returns the first value if it is not null, otherwise returns the second.  ifnull (cost, 'unknown') 
isnull 
Returns true if the value is null.  isnull (phone) 
not 
Returns true if the condition is false, otherwise returns false.  not (3 > 2) = false not (state = 'texas') 
or 
Returns true when either condition is true, otherwise returns false.  (1 = 5) or (3 > 2) = true state = 'california' or state ='oregon' 
Text functions
Function  Description  Examples 

concat 
Returns the one or more values as a concatenated text string. Be sure to use single quotes instead of double quotes around each of the strings.  concat ( 'hay' , 'stack' ) = 'haystack' concat (last_name , first_name ) 
contains 
Returns true if the first string contains the second string, otherwise returns false.  contains ('broomstick', 'room') = true contains (product, 'trial version') 
edit_distance 
Accepts two text strings. Returns the edit distance (minimum number of operations required to transform one string into the other) as an integer. Works with strings under 1023 characters.  edit_distance ('attorney', 'atty') = 4 edit_distance (color, 'red') 
edit_distance_with_cap 
Accepts two text strings and an integer to specify the upper limit cap for the edit distance (minimum number of operations required to transform one string into the other). If the edit distance is less than or equal to the specified cap, returns the edit distance. If it is higher than the cap, returns the cap plus 1. Works with strings under 1023 characters.  edit_distance_with_cap ('pokemon go', 'minecraft pixelmon', 3) = 4 edit_distance_with_cap (event, 'burning man', 3) 
similar_to 
Accepts a document text string and a search text string. Returns true if relevance score (0100) of the search string with respect to the document is greater than or equal to 20. Relevance is based on edit distance, number of words in the query, and length of words in the query which are present in the document.  similar_to ('hello world', 'hello swirl') = true similar_to (current team, drafted by) 
similarity 
Accepts a document text string and a search text string. Returns the relevance score (0100) of the search string with respect to the document. Relevance is based on edit distance, number of words in the query, and length of words in the query which are present in the document. If the two strings are an exact match, returns 100.  similarity ('where is the burning man concert', 'burning man') = 46 similarity (tweet1, tweet2) 
spells_like 
Accepts two text strings. Returns true if they are spelled similarly and false if they are not. Works with strings under 1023 characters.  spells_like ('thouhgtspot', 'thoughtspot') = true spells_like (studio, distributor) 
strlen 
Returns the length of the text.  strlen ('smith') = 5 strlen (lastname) 
strpos 
Returns the numeric position (starting from 0) of the first occurrence of the second string in the first string, or 1 if not found.  strpos ('haystack_with_needles', 'needle') = 14 strpos (complaint, 'lawyer') 
substr 
Returns the portion of the given string, beginning at the location specified (starting from 0), and of the given length.  substr ('persnickety', 3, 7) = snicket substr (lastname, 0, 5) 
Variables
These variables can be used in your expressions.
Function  Description  Examples 
ts_groups 
Returns a list of all the groups the current logged in user belongs to. For any row, if the expression evaluates to true for any of the groups, the user can see that row.  ts_groups = 'east'

ts_username 
Returns the user with the matching neame.  ts_username != 'mark' 