Was Boaz named after the column in the temple? Was Ruth's husband, Boaz named after the column by the temple of Solomon or vice versa?  Or was this a quiescence? Was this a common name for boys?

Ruth 2:1 ESV


  Now Naomi had a relative of her husband's, a worthy man of the clan of
  Elimelech, whose name was Boaz.


and

2 Chronicles 3:17 ESV


  He set up the pillars in front of the temple, one on the south, the
  other on the north; that on the south he called Jachin, and that on
  the north Boaz.
If anything, it would be the other way around. 

Boaz was David's great grandfather. Solomon was David's son. 

The Temple wasn't built until Solomon's time. 

According to Eerdmann's Dictionary of the Bible, some scholars believe the names of the columns may have gotten their names from "a dynastic inscription" upon them. Since Boaz is, indeed, in David's lineage, it is entirely possible that the column was named after Ruth's kinsman redeemer, the forefather of the great king. 

(That was pretty cool, by the way, hadn't noted the connection before. Thanks!)