SQLWorkbenchJ and Redshift execute this query forever - amazon-redshift

Question

I am trying to create a temporary table (using a CTE) to contain a list of all possible locales. I am executing this query in SQLWorkbenchJ build 125 on MacOS JVM 1.8
This query doesn't query any table in the database. If you copy paste this query it will execute forever. it will never print any results.
It has something to do with the size of the query. If I remove locales and only have upto the line 'en-GB' it works fine. but as you add more locales to the query, suddenly SQLWorkbenchJ will go blank and never return any results.
with locales(locale) as (
select 'af-ZA'
union
select 'am-ET'
union
select 'ar-AE'
union
select 'ar-BH'
union
select 'ar-DZ'
union
select 'ar-EG'
union
select 'ar-IQ'
union
select 'ar-JO'
union
select 'ar-KW'
union
select 'ar-LB'
union
select 'ar-LY'
union
select 'ar-MA'
union
select 'arn-CL'
union
select 'ar-OM'
union
select 'ar-QA'
union
select 'ar-SA'
union
select 'ar-SY'
union
select 'ar-TN'
union
select 'ar-YE'
union
select 'as-IN'
union
select 'az-Cyrl-AZ'
union
select 'az-Latn-AZ'
union
select 'ba-RU'
union
select 'be-BY'
union
select 'bg-BG'
union
select 'bn-BD'
union
select 'bn-IN'
union
select 'bo-CN'
union
select 'br-FR'
union
select 'bs-Cyrl-BA'
union
select 'bs-Latn-BA'
union
select 'ca-ES'
union
select 'co-FR'
union
select 'cs-CZ'
union
select 'cy-GB'
union
select 'da-DK'
union
select 'de-AT'
union
select 'de-CH'
union
select 'de-DE'
union
select 'de-LI'
union
select 'de-LU'
union
select 'dsb-DE'
union
select 'dv-MV'
union
select 'el-GR'
union
select 'en-029'
union
select 'en-AU'
union
select 'en-BZ'
union
select 'en-CA'
union
select 'en-GB'
union
select 'en-IE'
union
select 'en-IN'
union
select 'en-JM'
union
select 'en-MY'
union
select 'en-NZ'
union
select 'en-PH'
union
select 'en-SG'
union
select 'en-TT'
union
select 'en-US'
union
select 'en-ZA'
union
select 'en-ZW'
union
select 'es-AR'
union
select 'es-BO'
union
select 'es-CL'
union
select 'es-CO'
union
select 'es-CR'
union
select 'es-DO'
union
select 'es-EC'
union
select 'es-ES'
union
select 'es-GT'
union
select 'es-HN'
union
select 'es-MX'
union
select 'es-NI'
union
select 'es-PA'
union
select 'es-PE'
union
select 'es-PR'
union
select 'es-PY'
union
select 'es-SV'
union
select 'es-US'
union
select 'es-UY'
union
select 'es-VE'
union
select 'et-EE'
union
select 'eu-ES'
union
select 'fa-IR'
union
select 'fi-FI'
union
select 'fil-PH'
union
select 'fo-FO'
union
select 'fr-BE'
union
select 'fr-CA'
union
select 'fr-CH'
union
select 'fr-FR'
union
select 'fr-LU'
union
select 'fr-MC'
union
select 'fy-NL'
union
select 'ga-IE'
union
select 'gd-GB'
union
select 'gl-ES'
union
select 'gsw-FR'
union
select 'gu-IN'
union
select 'ha-Latn-NG'
union
select 'he-IL'
union
select 'hi-IN'
union
select 'hr-BA'
union
select 'hr-HR'
union
select 'hsb-DE'
union
select 'hu-HU'
union
select 'hy-AM'
union
select 'id-ID'
union
select 'ig-NG'
union
select 'ii-CN'
union
select 'is-IS'
union
select 'it-CH'
union
select 'it-IT'
union
select 'iu-Cans-CA'
union
select 'iu-Latn-CA'
union
select 'ja-JP'
union
select 'ka-GE'
union
select 'kk-KZ'
union
select 'kl-GL'
union
select 'km-KH'
union
select 'kn-IN'
)
select locale from locales limit 100;