Fix enabling compression on continuous aggregates with columns requiring quotation

[kgyrtkirk]

consider the sql commands:

drop table if EXISTS "tEst2" ;
-- Creating hypertable
CREATE TABLE IF NOT EXISTS "tEst2" (
    "Id" uuid NOT NULL,
    "Time" timestamp with time zone NOT NULL,
    CONSTRAINT "test2_pkey" PRIMARY KEY ("Id", "Time")
);

SELECT create_hypertable(
  '"tEst2"',
  'Time',
  chunk_time_interval => INTERVAL '1 day'
);

alter table "tEst2" set (timescaledb.compress=true, timescaledb.compress_segmentby='"Id"');

DROP MATERIALIZED VIEW if EXISTS "tEst2_mv";

CREATE MATERIALIZED VIEW "tEst2_mv"
WITH (timescaledb.continuous) AS
SELECT "Id" as "Idd",
   time_bucket(INTERVAL '1 day', "Time") AS "bUcket"
FROM public."tEst2" 
GROUP BY "Idd", "bUcket";

ALTER MATERIALIZED VIEW "tEst2_mv" SET (timescaledb.compress = true);

before this patch the last command failed because:

• the Idd column lost quotation; leading to ERROR: column "idd" does not exist
• or the bUcket column lost quotation; leading to ERROR: column "bucket" does not exist

[github-actions]

@mahipv, @akuzm: please review this pull request.

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[svenklemm]

doing DROP IF EXISTS is not necessary in tests since they each run in dedicated databases

[kgyrtkirk]

@svenklemm done

[codecov]

Codecov Report

Merging #5290 (5b8c4c4) into main (4cb76bc) will decrease coverage by 0.01%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main    #5290      +/-   ##
==========================================
- Coverage   89.34%   89.33%   -0.01%     
==========================================
  Files         225      225              
  Lines       51924    51913      -11     
==========================================
- Hits        46390    46375      -15     
- Misses       5534     5538       +4     

Impacted Files	Coverage Δ
tsl/src/continuous_aggs/options.c	95.79% <100.00%> (+0.44%)	⬆️
src/loader/bgw_message_queue.c	86.36% <0.00%> (-2.28%)	⬇️
src/bgw/scheduler.c	83.63% <0.00%> (-0.26%)	⬇️
tsl/src/bgw_policy/job.c	87.45% <0.00%> (-0.05%)	⬇️

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