[#720] fix drep/info null values

Signed-off-by: jankun4 <michaljankun@gmail.com>

CHANGELOG.md

@@ -49,6 +49,7 @@ changes.
 
 ### Fixed
 
+- drep/info no longer returns null values [Issue 720](https://github.com/IntersectMBO/govtool/issues/720)
 - drep/getVotes no longer returns 500 [Issue 685](https://github.com/IntersectMBO/govtool/issues/685)
 - drep/info no longer returns 500 [Issue 676](https://github.com/IntersectMBO/govtool/issues/676)
 - proposal/list search is case insensitive now [Issue 582](https://github.com/IntersectMBO/govtool/issues/582)

govtool/backend/sql/get-drep-info.sql

@@ -125,13 +125,13 @@ DRepRegister AS (
 DRepRetire AS (
     SELECT
         encode(AllRegistrationEntries.tx_hash, 'hex') as tx_hash,
-        AllRegistrationEntries.tx_id
+        AllRegistrationEntries.tx_id as tx_id
     FROM
         DRepRegister
     LEFT JOIN
-        AllRegistrationEntries ON AllRegistrationEntries.deposit < 0
-            OR AllRegistrationEntries.voting_anchor_id IS NULL
-    WHERE AllRegistrationEntries.tx_id > DRepRegister.tx_id
+        AllRegistrationEntries ON (AllRegistrationEntries.deposit < 0
+            OR AllRegistrationEntries.voting_anchor_id IS NULL)
+            and  AllRegistrationEntries.tx_id > DRepRegister.tx_id
     ORDER BY
         AllRegistrationEntries.tx_id asc
 
@@ -156,9 +156,9 @@ SoleVoterRetire AS (
     FROM
         SoleVoterRegister
     LEFT JOIN
-        AllRegistrationEntries ON AllRegistrationEntries.deposit < 0
-            OR AllRegistrationEntries.voting_anchor_id IS NOT NULL
-    WHERE AllRegistrationEntries.tx_id > SoleVoterRegister.tx_id
+        AllRegistrationEntries ON (AllRegistrationEntries.deposit < 0
+            OR AllRegistrationEntries.voting_anchor_id IS NOT NULL)
+            AND AllRegistrationEntries.tx_id > SoleVoterRegister.tx_id
     ORDER BY
         AllRegistrationEntries.tx_id asc