Bash, array of conditions, postgres selection

I am trying to use Bash to build a request in my postgres db. I have an asnums array and I want to query the table (dcan_nodup) in the database (ixmaps) to calculate how many rows appear in asnums.

The following code fragment is executed, which is missing below it.

WORKS (creates a comma-separated csv with the expected values):

declare -a carriers=(6461 17025 33139 17899 7018 5730 4466 577 6549 11489)
echo ""
echo "Generating CrFreqTR..."
for asnum in "${carriers[@]}"
do
    echo $asnum
    count=$(psql -d ixmaps -Atc "select count(distinct traceroute_id) from dcan_nodup where asnum = '$asnum';")
    echo $count
    echo $asnum", "$count >> dcan_crfreq_tr.csv
done

DOES NOT WORK:

declare -a whereConditions=('asnum = 6461 or asnum = 17025' 'asnum = 33139' 'asnum = 17899' 'asnum = 7018 or asnum = 5730 or asnum = 4466' 'asnum = 577 or asnum = 6549 or asnum = 11489')
for w in "${whereConditions[@]}"
do
    echo $w

    echo psql -d ixmaps -Atc "select count(distinct traceroute_id) from dcan_nodup where "$w";"
    psql -d ixmaps -Atc "select count(distinct traceroute_id) from dcan_nodup where "$w";"
    echo "NOPE #1"

    count=$(psql -d ixmaps -Atc "select count(distinct traceroute_id) from dcan_nodup where '$w';")
    echo $count
    echo "NOPE #2"
    echo $w", "$count >> dcan_crfreq_tr.csv
done

NOPE # 1 Results:

asnum = 6461 or asnum = 17025
psql -d ixmaps -Atc select count(distinct traceroute_id) from dcan_nodup where asnum = 6461 or asnum = 17025;
psql: warning: extra command-line argument "6461" ignored
psql: warning: extra command-line argument "or" ignored
psql: warning: extra command-line argument "asnum" ignored
psql: warning: extra command-line argument "=" ignored
psql: warning: extra command-line argument "17025;" ignored
psql: FATAL:  Ident authentication failed for user "="
NOPE #1
asnum = 33139
psql -d ixmaps -Atc select count(distinct traceroute_id) from dcan_nodup where asnum = 33139;
psql: warning: extra command-line argument "33139;" ignored
psql: FATAL:  Ident authentication failed for user "="
NOPE #1
asnum = 17899
psql -d ixmaps -Atc select count(distinct traceroute_id) from dcan_nodup where asnum = 17899;
psql: warning: extra command-line argument "17899;" ignored
psql: FATAL:  Ident authentication failed for user "="
...

NOPE # 2 Results:

asnum = 6461 or asnum = 17025
ERROR:  invalid input syntax for type boolean: "asnum = 6461 or asnum = 17025"
NOPE #2
asnum = 33139
ERROR:  invalid input syntax for type boolean: "asnum = 33139"
...

What I want to do is use the OR conditions to combine the counts from two or more of asns. If I do this manually, it will work fine, for example:

ixmaps@trgen:~/scripts$ psql -d ixmaps -Atc "select count(distinct traceroute_id) from dcan_nodup where asnum = 6461 or asnum = 17025;"
124

But I can't get it to work inside the Bash loop ...

I suspect that I either do not avoid the variable correctly, and not concatenate the lines correctly or something is equally trivial - I am new to Bash ...

+4
2

, $w.

w='one two'.

printf %s\\n "foo "$w" bar":

foo one
two bar

printf %s\\n "foo$wbar":

foo one two bar

,

psql ... "select ... "$w"...;"

psql ... "select ... $w ...;"
+1

?

declare -a carriers=(6461 17025 33139 17899 7018 5730 4466 577 6549 11489)

function join { local IFS="$1"; shift; echo "$*"; } 

echo ""
echo "Generating CrFreqTR..."

q= "copy ( select asnum count(distinct traceroute_id) from dcan_nodup where asnum in (" \
    `join , "${carriers[@]"` ") group by asnum ) TO STDOUT WITH CSV";

 psql -d ixmaps -Atc "$q" >> dcan_crfreq_tr.csv
+1

Source: https://habr.com/ru/post/1570371/


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